The Garmin Forerunner 265 is our overall pick for its advanced interval programming and long battery life. For a dedicated budget-friendly option, consider the Gymboss Interval Timer which owners praise for its simplicity and reliability.
Check price on AmazonInterval training is one of the most effective ways to boost cardiovascular fitness, burn calories, and improve athletic performance. Whether you are a runner doing track repeats, a HIIT enthusiast, or a CrossFit athlete, a reliable interval timer is essential to keep your workouts on track. With so many options from smartwatches to standalone timers, finding the right one can be overwhelming. We researched dozens of models, analyzed owner reviews, and compared key features to bring you this ranking of the best interval timers in 2026.
Our roundup focuses on devices that provide accurate timing, customizable intervals, and easy operation. We excluded anything that requires a subscription or has excessive complexity. Each pick earned its spot based on durability, battery life, programmability, and real user feedback. Whether you prefer a watch on your wrist or a clip-on timer, this guide will help you choose the perfect interval timer for your training goals.
How we rank
We analyzed owner reviews from major retailers and fitness forums, compared technical specs, and ranked timers based on accuracy, programmability, battery life, and durability. See our method.
Quick picks
| Best for | Product | Who it suits |
|---|---|---|
| Best Overall | Garmin Forerunner 265 | Runners and multisport athletes who need advanced interval features on their wrist |
| Best Value | Gymboss Interval Timer | HIIT and circuit training enthusiasts wanting a simple, affordable clip-on timer |
| Best for CrossFit | Timer Pro Interval Timer | CrossFit athletes needing a large, loud timer for group workouts |
| Best Smartwatch | Apple Watch Series 9 | iPhone users who want a versatile smartwatch with interval timer apps |
| Best Premium | Seiko S149 Quartz Stopwatch | Track and field athletes who prefer a traditional, precise stopwatch |
| Best Lightweight | CRZ Yoga Interval Timer | Yoga practitioners and home exercisers wanting a small, portable timer |
| Best for Rowing | NordicTrack RW900 Rower | Rowers who want integrated interval programs on their machine |
The picks, compared
Garmin Forerunner 265
The Garmin Forerunner 265 is a GPS running watch with dedicated interval workout functionality. It allows users to create custom interval sessions with rest timers, distance or time-based intervals, and automatic lap detection. The 1.3-inch AMOLED display is bright and easy to read during runs. Owners report that the battery lasts up to 13 days in smartwatch mode, and the interval programming is intuitive once learned.
What owners say: Owners consistently praise the accuracy of the GPS and the ease of setting up structured workouts. Many note that the interval feature is superior to other watches, with clear audio prompts and vibration alerts.
- Advanced interval customization
- Long battery life
- Bright AMOLED display
- Higher price point
- Steep learning curve for some features
Gymboss Interval Timer
The Gymboss Interval Timer is a compact, durable device that clips to your waistband or wrist. It features two programmable timers that cycle automatically, with loud beeps and a vibrating alert. The simple button interface makes it easy to set up work and rest periods. Owners appreciate the rugged build and the fact that it does not require a smartphone or app.
What owners say: Reviewers love the simplicity and reliability of the Gymboss, calling it a workhorse for HIIT workouts. Many mention that the vibration feature is powerful enough to feel during intense exercise.
- Very affordable
- No smartphone needed
- Loud and vibrating alerts
- Battery life could be longer
- Buttons can be hard to press with gloves
Timer Pro Interval Timer
The Timer Pro is a wall-mounted interval timer designed for gyms and home boxes. It features a large, easy-to-read LCD display and loud beeps that can be heard over music. It supports multiple interval modes including TABATA, EMOM, and custom intervals. Owners report that it is built to withstand heavy use in a group fitness setting.
What owners say: Owners say the Timer Pro is a staple in their CrossFit gym, with the large display visible from across the room. Some note that the buttons could be more responsive.
- Large display
- Loud audible alerts
- Multiple interval modes
- Requires wall mounting
- No vibration alert
Apple Watch Series 9
The Apple Watch Series 9 is a feature-rich smartwatch that can function as an interval timer using apps like Intervals Pro or built-in HIIT workouts. The bright Always-On Retina display and haptic feedback make it easy to follow intervals. It also tracks heart rate and calories burned during workouts. Owners appreciate the seamless integration with the Apple ecosystem.
What owners say: Users report that the interval timer apps are accurate and customizable, though setting up intervals can be more complicated than dedicated devices. Many praise the haptic feedback during runs.
- Versatile functionality
- Excellent haptic feedback
- Large app ecosystem
- Short battery life (up to 18 hrs)
- Requires iPhone to set up
Seiko S149 Quartz Stopwatch
The Seiko S149 is a high-precision quartz stopwatch with a large, easy-to-read LCD display. It measures to 1/100th of a second and has a split time function, making it ideal for timed intervals and lap splits. The rugged plastic case and large buttons are built for frequent use. Owners report that the battery lasts for years, making it a reliable long-term tool.
What owners say: Owners praise the Seiko stopwatch for its accuracy and durability, with many using it for decades. Some note the lack of programmable intervals, requiring manual timing.
- Extremely accurate
- Very durable
- Long battery life
- No programmable intervals
- No vibration alert
CRZ Yoga Interval Timer
The CRZ Yoga Interval Timer is a compact, magnetic timer that sticks to metal surfaces or stands on a desk. It has a simple design with a large display and adjustable brightness. It supports timer countdown, stopwatch, and interval modes with up to 10 programs. Owners appreciate its portability and easiness to use during home workouts.
What owners say: Reviewers note that the CRZ timer is perfect for yoga and small spaces, with a clear display. Some mention that the buttons could be more tactile.
- Compact and portable
- Magnetic back
- Easy to set up
- Alerts could be louder
- Limited advanced features
NordicTrack RW900 Rower
The NordicTrack RW900 Rower features a 22-inch interactive touchscreen with iFIT integration, offering structured interval workouts with automatic resistance changes. The rower comes with pre-programmed interval training sessions led by professional trainers. Owners report that the machine is sturdy and the interval options are varied and challenging.
What owners say: Owners rave about the immersive iFIT workouts and the smooth magnetic resistance. Some mention that the subscription is needed for full functionality, and the screen can be dim.
- Large interactive screen
- Automatic resistance changes
- Variety of interval programs
- Requires iFIT subscription for full use
- Large footprint
How to choose
- Accuracy and Precision. An interval timer must keep accurate time to ensure you are training at the right intensity. Look for timers that measure in seconds or fractions of a second, especially for short intervals like 30-second sprints.
- Customizability of Intervals. The best timers allow you to set work and rest durations, number of rounds, and even advanced features like ramping or delayed start. This flexibility lets you tailor workouts to your specific training goals.
- Alerts and Feedback. Clear audible beeps or visual flashes are essential for indicating start and end of intervals. Vibration alerts are valuable in noisy environments or for hearing-impaired users, ensuring you never miss a transition.
- Battery Life and Power Source. Consider whether you need a timer with rechargeable batteries, replaceable cells, or AC power. Long battery life is important for athletes who train outdoors or for extended sessions without access to charging.
- Portability and Durability. If you travel or move between workout locations, a compact, lightweight timer that clips to your gear is ideal. Durability matters for gym equipment that may be dropped or exposed to sweat.
Frequently asked questions
What is an interval timer?
An interval timer is a device or app that alternates between work and rest periods during workouts. It beeps or vibrates to signal when to start and stop, allowing you to focus on your training without manually checking a clock.
Do I need a dedicated interval timer or can I use my phone?
While phones can work, dedicated timers are often more durable, have louder alerts, and avoid distractions. For serious athletes, a dedicated timer or sports watch with interval features is recommended for reliability.
Can I use a smartwatch as an interval timer?
Yes, many smartwatches like the Apple Watch or Garmin Forerunner offer interval timer apps. However, they may require more setup and have shorter battery life compared to dedicated timers.
What features should I look for in an interval timer?
Key features include accuracy, programmable intervals, audible and vibration alerts, long battery life, and portability. Choose based on your activity, runners may prefer a watch, while gym-goers may like a clip-on timer.
How do I set up intervals on a dedicated timer?
Most dedicated timers have a simple interface where you set work and rest times using buttons. Some allow you to save programs. Refer to the user manual for specific instructions, as each brand differs.
Are there interval timers for group classes?
Yes, large display timers like the Timer Pro are designed for group fitness. They have big screens and loud beeps that everyone can see and hear, ideal for CrossFit boxes or HIIT classes.
The verdict
The Garmin Forerunner 265 is our top overall pick for its unmatched interval customization, accuracy, and integration with running dynamics. For a budget-friendly dedicated timer, the Gymboss Interval Timer offers simplicity and reliability. If you want a versatile smartwatch, the Apple Watch Series 9 excels with app support and haptic feedback.
Video Guide
Video: Related tutorial from YouTube