For runners seeking precise timing during interval workouts, clip-on interval timers are an essential tool. The Gymboss Interval Timer and Stopwatch – White/Gray Gloss stands out as the best overall due to its versatility and durability. The Gymboss Charge Interval Timer and Stopwatch & Watchstrap Bundle offers extra convenience with its bundled accessories, while the Gymboss Plus Interval Timer and Stopwatch with Strap Bundle is favored for its extended battery life. These options reflect the main tradeoffs in this category: balancing features like size, ease of use, and price. Continue reading for a detailed breakdown of each product’s strengths and tradeoffs.
Complete the kit
Key Takeaways
- The best interval timers for runners combine durability with intuitive controls, ensuring reliable performance during intense workouts.
- Battery life and ease of access are key differentiators, especially for longer training sessions or outdoor runs.
- Bundled options with accessories tend to cost more but provide added convenience for various use cases.
- Size and clip design vary, with some models prioritizing compactness while others emphasize visibility and accessibility.
- Pricing reflects feature sets: more advanced timers often come at a higher cost, but basic models can be surprisingly capable for casual runners.
| Gymboss Interval Timer and Stopwatch – White/Gray Gloss |  | Best Overall | Interval range: 1 second to 99 minutes | Size: 2.25 x 1.75 x 0.5 inches | Power: One AAA battery (not included) | VIEW ON AMAZON | See Our Full Breakdown |
| Gymboss Charge Interval Timer and Stopwatch & Watchstrap – Bundle |  | Best for Runners and On-the-Go Use | Interval range: 2 seconds to 99 minutes | Size: 2.25 x 1.75 x 0.5 inches | Power: Rechargeable battery | VIEW ON AMAZON | See Our Full Breakdown |
| Gymboss Plus Interval Timer and Stopwatch with Strap Bundle |  | Best for Outdoor and Heavy Use | Interval range: 2 seconds to 99 minutes | Size: 2.25 x 1.75 x 0.5 inches | Power: AAA batteries (not included) | VIEW ON AMAZON | See Our Full Breakdown |
| Gymboss Interval Timer and Stopwatch – Black/Blue |  | Best for Versatile Indoor Use | Interval range: 1 second to 99 minutes | Size: 2.25 x 0.5 x 1.75 inches | Power: 1 AAA battery (not included) | VIEW ON AMAZON | See Our Full Breakdown |
| Gymboss Interval Timer and Stopwatch – Violet/Pink Metallic Gloss |  | Best for Stylish, Versatile Use | Interval range: 2 seconds to 99 minutes | Size: 2.25 x 1.75 x 0.5 inches | Power: 1 AAA battery (not included) | VIEW ON AMAZON | See Our Full Breakdown |
| Gymboss Plus Interval Timer and Stopwatch – White/Black Hardcoat |  | Best Overall for Outdoor and Group Use | Interval range: 1 second to 99 minutes | Repeat mode: up to 99 repeats | Alarm duration: 1, 2, 5, or 9 seconds | VIEW ON AMAZON | See Our Full Breakdown |
| Gymboss Interval Timer and Stopwatch – Silver/Yellow Metallic Gloss |  | Best for Versatile Fitness Activities | Interval range: 2 seconds to 99 minutes | Repeat mode: up to 99 repeats | Alarm duration: 1, 2, 5, or 9 seconds | VIEW ON AMAZON | See Our Full Breakdown |
| Gymboss Charge Interval Timer and Stopwatch |  | Best Rechargeable, Weatherproof Option | Interval range: 2 seconds to 99 minutes | Repeat mode: up to 99 repeats | Alarm duration: 1, 2, 5, or 9 seconds | VIEW ON AMAZON | See Our Full Breakdown |
| Gymboss Interval Timer and Stopwatch – Teal/Blue Metallic Gloss |  | Best Lightweight, Budget-Friendly Choice | Interval range: 2 seconds to 99 minutes | Size: 2.25 x 1.75 x 0.5 inches | Power: AAA battery (not included) | VIEW ON AMAZON | See Our Full Breakdown |
| interval timers clipon runner | Interval range | Size | Power | Features |
|---|---|---|---|---|
| Gymboss Interval Timer and Sto | 1 second to 99 minutes | 2.25 x 1.75 x 0.5 inches | One AAA battery (not included) | Stopwatch, clock, auto mode, chime, vibration |
| Gymboss Charge Interval Timer | 2 seconds to 99 minutes | 2.25 x 1.75 x 0.5 inches | Rechargeable battery | Backlit LCD, auto mode, vibration, chime |
| Gymboss Plus Interval Timer an | 2 seconds to 99 minutes | 2.25 x 1.75 x 0.5 inches | AAA batteries (not included) | Impact-resistant, water-resistant, adjustable strap |
| Gymboss Interval Timer and Sto | 1 second to 99 minutes | 2.25 x 0.5 x 1.75 inches | 1 AAA battery (not included) | Auto repeat, chime, vibration |
| Gymboss Interval Timer and Sto | 2 seconds to 99 minutes | 2.25 x 1.75 x 0.5 inches | 1 AAA battery (not included) | Stopwatch, clock, auto mode, chime, vibration |
| Gymboss Plus Interval Timer an | 1 second to 99 minutes | 2.25 x 1.75 x 0.5 inches | 1 AAA battery (not included) | — |
| Gymboss Interval Timer and Sto | 2 seconds to 99 minutes | 2.25 x 1.75 x 0.5 inches | AAA battery (not included) | — |
| Gymboss Charge Interval Timer | 2 seconds to 99 minutes | — | — | — |
| Gymboss Interval Timer and Sto | 2 seconds to 99 minutes | 2.25 x 1.75 x 0.5 inches | AAA battery (not included) | Auto mode, vibration and sound alerts, impact resistant |
More Details on Our Top Picks
Gymboss Interval Timer and Stopwatch – White/Gray Gloss
This Gymboss model stands out for its compact size and versatile features, making it the most balanced choice for a wide range of users. Its ability to time one or two intervals, combined with a built-in stopwatch and clock, offers real flexibility. Unlike the Gymboss Plus, it lacks water resistance and a rechargeable battery, which could be drawbacks for outdoor or high-intensity use. The simple, small design makes it ideal for general fitness tasks, but it might fall short for athletes needing more durability or advanced features. Overall, this pick makes the most sense for those seeking a reliable, straightforward interval timer that fits easily into any workout routine.
Pros:- Small, lightweight size fits easily in hand or pocket
- Versatile interval and stopwatch functions
- Impact- and sweat-resistant construction
Cons:- Requires AAA battery (not included), which may be inconvenient
- Limited to 1 or 2 interval options at a time
Best for: Fitness enthusiasts who want a compact, all-around timer for various workouts, including HIIT and strength training
Not ideal for: Outdoor athletes or those training in harsh conditions who need water resistance and longer battery life
- Interval range:1 second to 99 minutes
- Size:2.25 x 1.75 x 0.5 inches
- Power:One AAA battery (not included)
- Features:Stopwatch, clock, auto mode, chime, vibration
- Impact resistance:Yes
- Sweat resistance:Yes
Our verdict“This timer offers a reliable, all-purpose solution perfect for most indoor and light outdoor workouts.”
Gymboss Charge Interval Timer and Stopwatch & Watchstrap – Bundle
This bundle combines the Gymboss CHARGE timer with a high-quality watchstrap, offering a rechargeable, weatherproof option that excels in outdoor conditions. Unlike the simpler Gymboss White/Gray, the Charge features a rechargeable battery and a backlit LCD, making it easier to see in low light and reducing the need for battery replacements. Its weatherproof design allows use in rain and humid environments, although it cannot be submerged, which limits its use in swimming or heavy water exposure. The strap provides a seamless way to wear the timer as a wristwatch, ideal for runners or coaches monitoring intervals during activity. While more expensive, this bundle suits those wanting durable, rechargeable convenience in outdoor or intense training settings.
Pros:- Rechargeable battery lasts for months on a single charge
- Weatherproof, suitable for outdoor conditions
- Includes a comfortable, durable watch strap
Cons:- Cannot be submerged in water, limiting some water activities
- More expensive than basic models
Best for: Runners, outdoor athletes, and coaches needing a weatherproof, rechargeable timer with wrist-wear capability
Not ideal for: Swimmers or users expecting full waterproofing for underwater activities
- Interval range:2 seconds to 99 minutes
- Size:2.25 x 1.75 x 0.5 inches
- Power:Rechargeable battery
- Features:Backlit LCD, auto mode, vibration, chime
- Weatherproof:Yes
- Includes:Wrist strap
Our verdict“This bundle is ideal for outdoor athletes who prioritize durability, rechargeability, and wrist-worn convenience.”
Gymboss Plus Interval Timer and Stopwatch with Strap Bundle
The Gymboss Plus stands out with its enhanced water resistance and impact resistance, making it better suited for outdoor and rugged use than the basic models. Its multiple interval and alarm options provide greater flexibility, especially useful for athletes who need precise timing in unpredictable conditions. Unlike the B00HR82OBG, it includes a strap for wrist-wear, which can be a game-changer for runners and outdoor trainers. However, it requires a AAA battery (sold separately), and some might find the loud beeping disruptive in quiet environments. This model is ideal for those who need a durable, outdoor-ready timer but are willing to accept the tradeoff of a slightly higher price and battery management.
Pros:- Water-resistant and impact-resistant for outdoor use
- Multiple interval and alarm options for customization
- Includes a secure, adjustable wrist strap
Cons:- Requires separate purchase of AAA batteries
- Loud beeps may be disruptive in quiet settings
Best for: Outdoor athletes and trainers seeking a durable, water-resistant timer with wrist-wear capability
Not ideal for: Indoor-only users or those on a tight budget who prefer rechargeable options
- Interval range:2 seconds to 99 minutes
- Size:2.25 x 1.75 x 0.5 inches
- Power:AAA batteries (not included)
- Features:Impact-resistant, water-resistant, adjustable strap
- Alarm options:Chime, vibration
- Water resistance:Yes
Our verdict“This timer is perfect for outdoor or rugged training environments where durability and wrist-wear are priorities.”
Gymboss Interval Timer and Stopwatch – Black/Blue
This version offers a straightforward, lightweight design with essential interval and stopwatch features, making it an excellent choice for indoor workouts. Its simple interface resembles a small pager, and the combination of vibration and sound notifications helps in noisy gyms or quiet home spaces. Compared to the more feature-rich Gymboss Plus or Charge, it lacks water resistance and the ability to wear as a wristwatch, limiting outdoor or high-intensity use. Its single AAA battery requirement is a minor inconvenience, and it’s best suited for users who want a no-fuss timer for regular indoor routines. Overall, it’s a reliable, budget-friendly option for casual or beginner exercisers.
Pros:- Compact, lightweight, easy to carry
- Multiple notification options including vibration
- Affordable and straightforward to operate
Cons:- No water or impact resistance, limiting outdoor use
- Requires AAA battery (not included)
Best for: Indoor fitness enthusiasts or beginners who want a simple, lightweight timer without outdoor durability needs
Not ideal for: Outdoor athletes or those needing water resistance and wrist-wear functionality
- Interval range:1 second to 99 minutes
- Size:2.25 x 0.5 x 1.75 inches
- Power:1 AAA battery (not included)
- Features:Auto repeat, chime, vibration
- Impact resistance:No
- Water resistance:No
Our verdict“This timer offers basic, reliable interval tracking perfect for indoor workouts or beginners on a budget.”
Gymboss Interval Timer and Stopwatch – Violet/Pink Metallic Gloss
This colorful and compact timer combines customizable intervals with a stylish finish, making it appealing for users who want both function and flair. Its range from 2 seconds to 99 minutes and inclusion of a stopwatch and clock match the versatility of the White/Gray model but with a more vibrant aesthetic. Its impact resistance and auto mode make it suitable for a variety of workouts, though it shares the same battery dependency and interval limits. Unlike the more rugged Gymboss Plus, it offers less outdoor durability but compensates with a lively design. This pick is ideal for users wanting a colorful, versatile timer for indoor training or casual use, where style matters as much as function.
Pros:- Bright, attractive metallic finish
- Multiple notification options including vibration
- Compact and lightweight for easy carrying
Cons:- Requires AAA battery (not included)
- Limited durability for heavy outdoor use
Best for: Stylish fitness enthusiasts and casual exercisers seeking a colorful, versatile timer for indoor use
Not ideal for: Serious outdoor athletes or those needing waterproof, impact-resistant gear for harsh conditions
- Interval range:2 seconds to 99 minutes
- Size:2.25 x 1.75 x 0.5 inches
- Power:1 AAA battery (not included)
- Features:Stopwatch, clock, auto mode, chime, vibration
- Impact resistance:Yes
- Color:Violet/Pink Metallic Gloss
Our verdict“This timer blends style and function, making it perfect for casual users who value colorful accessories in their workout gear.”
Gymboss Plus Interval Timer and Stopwatch – White/Black Hardcoat
The Gymboss Plus stands out for its durability and versatile alert options, making it ideal for outdoor runners or those who train in group settings. Compared with the Gymboss Charge, it offers impact and sweat resistance, which is a key advantage for outdoor activities, though it lacks the rechargeable battery feature. Its loud beep and vibration alerts ensure you won’t miss signals, even in noisy environments. The built-in stopwatch adds value for timing warm-ups or cool-downs. The downside is its reliance on a single AAA battery, which may require frequent replacements, and it doesn’t have a backlit display for low-light use. It’s perfect for runners and outdoor enthusiasts who prioritize durability and loud alerts.
Pros:- Highly durable and impact resistant
- Loud alarm and vibration for noisy environments
- Water-resistant for outdoor use
- Compact size fits easily on clothing
Cons:- Battery replacement needed over time
- No backlit display for low-light conditions
Best for: Outdoor runners and group trainers needing a rugged, loud, and reliable timer
Not ideal for: Indoor athletes or runners who prefer rechargeable devices with backlit displays
- Interval range:1 second to 99 minutes
- Repeat mode:up to 99 repeats
- Alarm duration:1, 2, 5, or 9 seconds
- Water resistance:Impact and sweat resistant
- Size:2.25 x 1.75 x 0.5 inches
- Power:1 AAA battery (not included)
Our verdict“This pick makes the most sense for outdoor runners and group instructors who need a tough, loud timer.”
Gymboss Interval Timer and Stopwatch – Silver/Yellow Metallic Gloss
The Gymboss Silver/Yellow excels in offering a vibrant, portable timer suitable for a broad range of activities like HIIT, CrossFit, and running, comparable to the Teal/Blue model but with a more visible design. It features a simple, compact form factor and multiple alert options, including vibration and sound, making it adaptable for noisy gyms or outdoor environments. Its durability and impact resistance mean it can handle strenuous workouts, but it’s limited by the lack of a backlit display, which can hinder use in darker settings. Additionally, it runs on a single AAA battery, which isn’t included, adding minor inconvenience. This model is ideal for fitness enthusiasts who value a colorful, lightweight timer for diverse activities.
Pros:- Bright, colorful design for easy visibility
- Multiple alert options including vibration
- Impact-resistant and durable
- Compact and lightweight
Cons:- No backlit display for low-light environments
- Battery not included
Best for: CrossFit athletes, runners, and martial artists seeking a colorful, versatile timer
Not ideal for: Low-light or indoor-only users who need a backlit screen and rechargeable power
- Interval range:2 seconds to 99 minutes
- Repeat mode:up to 99 repeats
- Alarm duration:1, 2, 5, or 9 seconds
- Impact resistance:Yes
- Size:2.25 x 1.75 x 0.5 inches
- Power:AAA battery (not included)
Our verdict“This pick is perfect for active users who want a durable, colorful timer that works across various fitness routines.”
Gymboss Charge Interval Timer and Stopwatch
The Gymboss Charge appeals to users who prefer a rechargeable device with a sleek, modern look and long-lasting power. Its rechargeable battery and backlit LCD make it suitable for outdoor use in variable lighting, contrasting with the non-backlit models like the Teal/Blue. Its weatherproof design stands out for tough outdoor conditions, but it can’t be submerged fully, which may be a drawback for water-heavy activities. The device’s customizable settings, including multiple alerts and up to 99 repeats, make it versatile, though its slightly larger size and need for charging might be less convenient for minimalists. This model is best for tech-savvy athletes who want a durable, rechargeable timer with clear visibility in all conditions.
Pros:- Rechargeable battery lasts for months
- Backlit LCD for easy reading in low light
- Weatherproof but not fully submersible
- Customizable timing and alerts
Cons:- Cannot be fully submerged in water
- Slightly larger and more complex than basic models
Best for: Outdoor athletes and tech-savvy users seeking a rechargeable, weatherproof timer
Not ideal for: Indoor-only users or those who prefer simplicity without charging requirements
- Interval range:2 seconds to 99 minutes
- Repeat mode:up to 99 repeats
- Alarm duration:1, 2, 5, or 9 seconds
- Display:Backlit LCD
- Weatherproof:Yes, not fully submersible
- Battery:Built-in rechargeable, lasts months
Our verdict“This pick makes the most sense for outdoor runners and athletes who value a rechargeable, weather-resistant timer with a clear display.”
Gymboss Interval Timer and Stopwatch – Teal/Blue Metallic Gloss
The Gymboss Teal/Blue offers a budget-friendly, lightweight option for runners and martial artists who need a simple, reliable timer. Its compact size and impact resistance make it easy to attach securely to clothing or gear. While it provides essential features like adjustable intervals, vibrate and sound alerts, and auto-repeat, it lacks a backlit display, making it less suitable for low-light conditions or indoor use at night. The device runs on a single AAA battery, which isn’t included, adding another small expense. Compared with the more feature-rich Charge, this model prioritizes simplicity and affordability. It’s well-suited for beginners or those who want a straightforward timer without extra bells and whistles.
Pros:- Lightweight and easy to carry
- Impact resistant and durable
- Affordable price point
- Multiple alert options
Cons:- No backlit display for nighttime use
- Battery not included
Best for: Beginners or budget-conscious athletes who need a straightforward, no-frills timer
Not ideal for: Users who train in low-light environments or prefer rechargeable, feature-rich devices
- Interval range:2 seconds to 99 minutes
- Size:2.25 x 1.75 x 0.5 inches
- Power:AAA battery (not included)
- Features:Auto mode, vibration and sound alerts, impact resistant
Our verdict“This pick suits beginners and budget shoppers who want a simple, reliable timer for general fitness activities.”
How We Picked
The products in this roundup were selected based on their performance, build quality, ease of use, and versatility in real running scenarios. We prioritized timers that are specifically designed to clip onto runners, ensuring they are lightweight, durable, and straightforward to operate during fast-paced workouts. Battery life and visibility were critical factors, as runners need timers that last through extended sessions and are easy to read at a glance. We also considered value for money, balancing features against cost, and included a mix of basic and feature-rich options to cater to different runner needs.| interval timers clipon runner | Features |
|---|---|
| Gymboss Interval Timer and Sto | Stopwatch, clock, auto mode, chime, vibration |
| Gymboss Charge Interval Timer | Backlit LCD, auto mode, vibration, chime |
| Gymboss Plus Interval Timer an | Impact-resistant, water-resistant, adjustable strap |
| Gymboss Interval Timer and Sto | Auto repeat, chime, vibration |
| Gymboss Interval Timer and Sto | Stopwatch, clock, auto mode, chime, vibration |
| Gymboss Plus Interval Timer an | — |
| Gymboss Interval Timer and Sto | — |
| Gymboss Charge Interval Timer | — |
| Gymboss Interval Timer and Sto | Auto mode, vibration and sound alerts, impact resistant |
Factors to Consider When Choosing Interval Timers Clipon Runners
When choosing an interval timer clipon runner, several factors should influence your decision. Beyond basic functionality, consider how the timer’s size and clip design will fit with your running style, and whether additional features like multiple intervals or alarms are necessary. Durability and battery life are critical for outdoor use, while ease of operation ensures you won’t miss your interval cues. Price is also a consideration—higher-cost models often offer more advanced features, but simpler timers can suffice for casual training. Keep these factors in mind to select a timer that best matches your workout routine and budget.Size and Clip Design
The size and clip mechanism of your interval timer directly impact comfort and convenience. Compact timers are less obtrusive and won’t distract during runs, but they may have smaller displays or fewer features. A secure, easy-to-use clip ensures the timer stays in place without causing discomfort. Some models feature adjustable clips or straps for better fit, which can be a real advantage during longer sessions or varied terrain. Choosing the right size and clip design helps maintain focus on your workout without fussing with the device.
Display Visibility and Ease of Use
Clear, easily readable displays are essential, especially when running at high speeds or in bright sunlight. Look for timers with large digits and high contrast screens. Button layout and simplicity matter too—intuitive controls enable quick adjustments without breaking stride. If you often switch between intervals, models with dedicated start/stop buttons or multiple preset options streamline your workout. Prioritizing display visibility and usability minimizes interruptions and keeps your focus on performance.
Battery Life and Power Options
Long-lasting battery life is vital for outdoor runners or those doing extended sessions. Some timers feature replaceable batteries, which can extend lifespan and lower ongoing costs. Others may have rechargeable options, offering convenience but requiring access to power sources. Consider how often you’ll need to change or recharge batteries, especially if you train regularly. A timer with reliable power management reduces the risk of interruptions mid-workout, enhancing consistency and confidence.
Features and Customization
Additional features like multiple interval settings, sound alarms, vibration alerts, and countdown options can enhance your training. However, more complex timers might increase the learning curve or add unnecessary bulk. Reflect on your specific needs—if you do varied workouts, a model with customizable intervals makes sense. For simple, steady routines, a basic timer with a loud alarm may be enough. Balancing feature set with ease of use ensures you get a device that complements your training style without complicating it.
Price and Overall Value
Price ranges in this category are wide, with basic models offering essential features at lower costs and premium options including extra accessories or advanced controls. Consider whether the extra features justify the price for your level of running and training intensity. Sometimes, investing a bit more yields better durability and additional functionalities, but budget options can be perfectly adequate for casual runners. Evaluating value involves weighing your specific needs against what each model offers at its price point.
Frequently Asked Questions
How long do the batteries last on these clip-on timers?
Battery life varies depending on the model and usage, but most clip-on interval timers are designed to last through several training sessions on a single charge or battery change. Basic models often run for months on replaceable batteries, while rechargeable options may need recharging after 10-20 hours of active use. If you run frequently or long distances, selecting a model with a longer-lasting or easily replaceable power source can reduce interruptions. Always check the manufacturer’s specifications to ensure the timer meets your training duration needs.
Are these timers suitable for outdoor running in all weather conditions?
Many clip-on timers are built with durability in mind, featuring water-resistant or weatherproof designs that can withstand rain, sweat, and dust. However, not all models are equally protected—some may be vulnerable to heavy rain or submersion. It’s essential to choose a timer with an appropriate IP rating or water resistance certification if you plan to run in unpredictable weather. Properly securing the device and avoiding extreme conditions will help prolong its lifespan and maintain reliable performance.
Can I customize the interval settings on these timers?
Most modern clip-on timers offer customizable interval settings, allowing you to set different durations for work and rest periods. This flexibility helps tailor workouts to your specific training plans. Some models include preset options or memory functions, making it quick to switch between routines. However, more complex customization might involve a slight learning curve, so consider your comfort with technology when choosing a model. If you prefer simplicity, look for timers with straightforward, easy-to-program controls.
Which timers are best for beginners or casual runners?
For those new to interval training or casual runners, simplicity and reliability are key. Basic models with large, clear displays and simple one-touch controls tend to be the best fit. The Gymboss Interval Timer and Stopwatch – White/Gray Gloss exemplifies this with its straightforward interface and durability. These timers may lack advanced features but provide all necessary functions to support effective intervals without overwhelming the user. Investing in a user-friendly device helps build confidence and consistency early on.
Is it worth paying more for a bundled kit with accessories?
Bundled kits often include additional straps, extended clips, or protective covers, which can enhance convenience and versatility. If you frequently change running styles or need secure attachment in rough terrain, the extra accessories may justify the higher cost. However, if you primarily run on even surfaces or prefer a minimal setup, a basic timer without extras might be sufficient. Consider your specific training environment and whether the added accessories will genuinely improve your experience before investing in a bundle.
Conclusion
For casual runners or beginners, a simple, easy-to-use timer like the Gymboss Interval Timer and Stopwatch – White/Gray Gloss offers reliable performance without complexity. Competitive athletes or those doing varied interval routines may prefer models with customizable settings and longer battery life, such as the Gymboss Charge Interval Timer bundle. If budget is a key concern, basic timers provide good value, while premium options with accessories suit serious runners seeking durability and convenience. Ultimately, your choice should align with your training intensity, environment, and comfort with technology.
