Top 7 Best Smartwatches with Long Battery Life

best smartwatches with long battery life

Battery life was our main focus for this list, but we also gave consideration to a few other criteria.

Firstly, we eliminated all fitness bands (this post is for smartwatches alone and fitness bands will have a post of their own later). Next, we removed any smartwatch that couldn’t last up to 10 days with regular use thereby narrowing down our list to only 10 smartwatches.

Then, we removed smartwatches that lasted longer than 10 days but did not have robust fitness tracking abilities using metrics like continuous heart rate monitoring, water resistance, step counting, and individual exercise modes.

Withings Steel HR came out on top of our list with about 25 days of regular use, while Amazfit GTS rounded up our list with an admirable 10 days of regular use.

The 7 best smartwatches with long battery life

  1. Withings Steel HR ~ 25 days regular use
  2. Amazfit T-rex ~ 20 days regular use, 20hrs continuous GPS
  3. Amazfit GTR ~ 20 days
  4. Garmin Fenix 6 ~ 16 days
  5. Garmin Forerunner 945 ~ 14 days
  6. Amazfit GTS ~14 days
  7. Huawei Watch GT 2 ~12 days

1. Withings Steel HR

Battery life: 25 days
Withings steel hr

Key features

  • More than 30 sports modes including swimming, weightlifting, yoga, and Zumba
  • Up to 25 days of battery life with regular use
  • Robust Sleep tracking
  • Continuous Heart Rate Monitoring
  • Very Affordable pricing

Withings Steel HR tops our list for the best smartwatches with long battery life. It achieves an incredible 25 days on a single charge by being a hybrid smartwatch. The battery has to power only a small monochrome display that sits nicely at 12 O’clock position.

The smartwatch looks great and works great too. As a fitness tracker, it has continuous heart rate monitoring, step counting, calories, tracking, sleep tracking, and is waterproof up to 5 ATM.

2. Amazfit T-rex

Battery life: ~20 days
amazfit t-rex

Key features

  • Military 810G certification for dust, water, heat, and cold resistance.
  • 20 days of battery life with regular use; 20 hours continuous GPS use
  • Supports 14 sports modes
  • Continuous heart rate monitoring
  • Smart notifications

Amazfit T-rex is one of our favorite smartwatches this year for good reason. It comes in at number 2 in our list of smartwatches with the best battery life and compliments this status with impressive performance.

It sports a rugged design with military 810G certification, built-in GPS, and a gorgeous AMOLED display that’s visible in direct sunlight, and a battery capable of lasting just over 18 days of regular use.

3. Amazfit GTR

Battery life: ~20 days
amazfit gtr

Key Features

  • 20 days + battery life with regular use; 36 hours continuous GPS use
  • Built-in GPS+GLONASS
  • 14 Exercise modes
  • Beautiful Always-on display
  • Music Control
  • Smart notifications

Another Amazfit that made our list is the Amazfit GTR. The watch is one of the fashion first smartwatches clearly targeting the Apple Watch and Fitbits, but manages to outshine both in the battery department.

Amazfit GTR is a beautiful smartwatch with a big round AMOLED display, that clocks in with about 20 days of battery life on continuous usage. It is fitted with smart and sports features that rival other premium smartwatches.

4. Garmin Fenix 6

Battery life: 16+ days
Garmin Fenix 6

Key Features

  • Built-in GPS+Glonass, Galileo
  • 16 days + battery life with normal use
  • Music Storage and Playback
  • Garmin Pay
  • 20+ Exercise Modes
  • Swimproof
  • Smart notifications

The Garmin Fenix 6 is one of Garmin’s premium fitness trackers packed with only the best Garmin technology. In terms of fitness tracking, it is the ‘Gold Standard’ and other trackers are really measured against it. It has dedicated tracking profiles for different sports including crossfit, weight training and yoga.

It is fitted with GPS, GLONASS, Galileo sensors for precise location, route, and map tracking. The battery lasts up to 36 hours in GPS tracking mode, and you can expect up to 16 days of battery life with normal usage

5. Garmin Forerunner 945

Battery life: 14 days
garmin forerunner 945

Key Features

  • Built-in GPS + GLONASS + Galileo
  • Onboard maps to trace your route, distance, and pace in real-time
  • 14 day + battery life with regular use; 10 – 60 hours continuous GPS mode
  • Garmin Pay
  • Music Storage and playback
  • Pulse Oximeter
  • Safety tracking features and more.

Garmin Forerunner 945 is Garmin’s top smartwatch for professional athletes, especially for triathlon and track events. The smartwatch boast features and tech you’ll not find in any other smartwatch and has a strong battery life of up to 14 days of regular use. With continuous GPS use, you can get between 10 to 60 hours depending on other features you have turned on.

6. Huawei Watch GT 2

Battery life: 12+ days
huawei watch gt 2

key features

  • Built-in GPS+GLONASS
  • 12 days + battery life with normal use; 18 hours continuous GPS mode
  • Music Storage and playback
  • Swimproof
  • Smart notifications
  • Best in class Sleep tracking

Huawei Watch GT 2 makes our list with a battery that lasts 12 days + on a single charge and a lot of great features.

It comes with built-in GPS & GLONASS, accelerometer, altimeter, compass, barometer, a microphone, speaker, 4GB built-in storage for music, Bluetooth 5.1 to connect to your music.

The watch is water-resistant up to 50 meters (5 ATM) and has dedicated swim features. The cycling profile is well robust and gives voice prompts you for laps, distance, and route mapping.

7. Amazfit GTS

Battery life: ~10 days
amazfit gts

Key Features

  • 10 days + battery life with regular use; 24 hours continuous GPS use
  • Built-in GPS+GLONASS
  • 14 Exercise modes
  • Beautiful Always-on display
  • Music Control
  • Smart notifications

Amazfit GTS is literally the squared version of the Amazfit GTR with all the similar functions. It has worse battery performance than the GTR however, coming in at 10 days of regular use.

As a fitness tracker, you get very good heart rate monitoring, step counter, lots of exercise modes, and waterproofing for swim activities.

Last update on 2021-09-20. Affiliate links and images from Amazon product advertising API