10 Best Smartwatches With Long Battery Life (2024 Updated)

A smartwatch with long battery life allows you to track your fitness journey for longer.

But Mostly smartwatches in the market offer average battery life, lasting between 1 and 2 days. Even big brands like Apple don’t provide watches with extended batteries.

A few brands, like Garmin, Fitbit, and Amazfit, offer smartwatches with extra-long battery life.

I have tested and used dozens of smartwatches in the past few months. Based on my experience, I’m compiling this guide to help you find the best smartwatch to give you a long-lasting battery.

So let’s get started!

Top Best Smartwatches With Long Battery Life

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Our Top Picks…

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1- Garmin Fenix 7 – 18 Days Battery Life

Features:

• 18 days of battery life
• 10 ATM water rating
• 79g weight
• GPS with GLONASS
• Barometer
• Storage for 2000 music
• Safety tracking features

One of the best smartwatches with long battery life is Garmin Fenix 7, and it gives you 18 days of battery backup in smartwatch mode.

Fenix 7 also comes in a solar variant that gives extra battery performance than the standard version. The Fenix 7 solar variant lasts for 22 days. If you’re a person who is always on the go or an outdoor worker, then Fenix 7 solar version is the best option. 

In GPS mode, Fenix 7 also provides exceptional battery performance than its predecessor. You can use Feenix 7 in GPS mode for 57 hours which is enough for outdoor adventures. 

Moreover, Fenix 7 brings MTB dynamics features for bikers that measure biking metrics and trail difficulty. 

There are tons of sports profiles available in Fenix 7. Plus, you can also create a custom sports profile. All the data of your training and sports activities will sync with Garmin connect app, where you can see your daily performance more comprehensively. 

There is a built-in recovery advisor that lets you know whether you’re ready for the next workout or need some rest. 

The upgraded wrist-based heart rate sensor measures your real-time heart rate and gives you HR alters. The heart rate sensor also calculates stress data based on your heart rate variability. 

Sleep tracking on Fenix 7 is also excellent; you will get a full breakdown of your sleep data. You can use this watch to improve your sleep habits.

If you are a pro athlete, Fenix 7 is the best smartwatch, which is overloaded with health and training features. 

2- Garmin Forerunner 945 – 14 Days Battery Life

Features

• 2 weeks of battery life
• 5 ATM water rating
• Corning Gorilla Glass DX
• 50 g weight
• GPS, Compass, Barometer
• LiveTrack
• Cardio workouts

The Forerunner 945 is a high-end Garmin watch which is a little expensive but gives 2 weeks of battery backup on a single charge. 

Forerunner 945 is the best battery life smartwatch for hikers and outdoor enthusiasts because it lasts 36 hours in GPS mode.

Forerunner 945 is made for people working in side areas where it’s difficult to charge your watch. Similarly, the watch also performs well for pro adventure enthusiasts. 

There is a 1.2” screen, which is protected with Corning Gorilla Glass Dx, and the case is made of fire polymer that looks like plastic. Overall, Forerunner 945 doesn’t give much premium looks like Fenix 7, but still better than its predecessors. 

Forerunner 945 is specifically made for pro runners and cyclists. To track your moves, this watch includes an upgraded accelerometer that gives more accurate results. Whether a trail runner or indoor runner, Forerunner 945 tracks your performance very efficiently. 

 

For cycling, Forerunner 945 includes different profiles like indoor biking, biking, trail biking, e biking and mountain biking. 

The watch includes a special cycling feature called Cycling power. To use this feature, you must connect your Garmin with a power meter to track your rides more efficiently. 

To keep yourself motivated, you should listen to music while training. Luckily Forerunner 955 includes built-in storage for music that allows you to store up to 1000 songs on your device. 

 

3- Amazfit GTS 4 Mini – 15 Days Battery Life

Features:

• 270 mAh battery last for 15 days
• Microphone and speaker
• Aluminum alloy body
• 31.2 g weight
• 126 sport modes
• Advance sleep tracking

If you’re on a budget but still want a smartwatch with the best battery life, then Amazfit GTS 4 is the best option. This Amazfit watch is lightweight and comfortable, so you can easily wear it throughout your day. 

Amazfit claims that this smartwatch will work for 15-days on a single charge which is impressive. There is a 270 mAh battery that gives the best performance. Amazfit also introduced battery saver mode for minimal battery drainage, and you can use your watch for 45 days in this mode. 

GTS 4 mini supports magnetic charging, but this watch has no fast charging feature. It takes about 2 hours to fully charge the battery.

In terms of design, it has a 1.65” of AMOLED display that looks much brighter. You can easily view the dial under direct sunlight. The screen is tempered glass that protects your watch from scratches and dust. 

Amazfit GTS 4 mini also performs excellently in the health tracking department. Especially the Zepp app gives more comprehensive detail of your daily fitness data. 

There are over 120+ sports modes, including running, cycling, yoga, treadmill, hiking, and more. The watch also includes VO2 max, which tracks your maximum oxygen uptake during workouts. You can also track your Aerobic and Anaerobic performance on this watch. 

4- TicWatch Pro 3 – 45 Days Battery Life

Features

• 100+ sports modes
• Qualcomm Snapdragon Wear 4100
• Dual-layer Display 2.0 supports Smart Mode
• 1G RAM and 8G ROM 
• 24H heart rate monitoring
•  Auto-adjustable brightness

If you’re an Android user, TicWatch Pro 3 is your best smartwatch with longest battery life.

Mostly, Wear Of watches does not offer good battery performance. But in TicWatch Pro 3, you will get innovative technology that ensures long battery life. It comes with dual-layer display 2.0 that supports essential mode and smart mode. 

In enhanced mode, Ticwatch Pro 3 lasts for 45 days, whereas in the smart mode, it gives 3 days of battery life. 

For a faster and optimized experience, there is a Snapdragon wear 4100 parallel with a Mobvoi dual processor. Plus, this watch has a full 1 GB of ram that boosts the speed. 

TicWatch Pro 3 comes with an LTE feature, similar to the Apple watch’s Cellular feature. It allows you to answer calls and send SMS directly from your wrist. You can also use the internet on your wrist without smartphone connectivity

TicWatch Pro 3 includes a PPG sensor that gives accurate heart rate tracking. It has also included Blood Oxygen Saturation level monitoring which is the core health feature in any smartwatch. 

The upgraded TicSleep feature measures your sleep stages and all-day naps. It gives a daily sleep score so you can guess your sleep quality. Similarly, Tizen measures your stress score by analyzing HRV. 

There are over 100+ workout modes that allow you to track every indoor and outdoor activity. You can also measure distance and speed during running or cycling with built-in GPS. 

5- Fitbit Charge 5 – 4 Days Of Battery Life

Features:

• 7 days of battery life
• SpO2 and heart rate tracking
•  Stress Management Score
• Real-time pace & distance tracking
• Daily Readiness Score

The new Charge 5 will last up to 7 days in smartwatch mode and 5 hours in GPS use. This battery performance is much better than predecessors, and now you can track your fitness for a week on a single charge. 

Compared to the previous Charge 4, this new flagship tracker offers a vibrant AMOLED display which is 2X brighter. You can easily read the display under direct sunlight. 

The new health and fitness feature in Charge 5 making it superior to Versa 2 and 3. This Flagship tracker includes high-end fitness features that only come with Fitbit Sense. 

First, it has an ECG app that allows you to look for signs of AFib. This feature also works while you are sleeping. Plus, there are also HRV alters that keep you informed about your irregular heart rate. 

The Daily Readiness score is another useful feature for health tracking. This feature gathers data from your exercises, HRV, and sleep and lets you know if you’re ready for your next workouts or need rest. 

Another feature that I like the most in Charge 5 is Active Zone Minute. Although this feature is also available in previous smartwatches, it is a very useful. This feature counts the minutes you have spent in any heart-pumping activity; the more you earn, the more the performance will be. 

Sleep tracking tools in the Fitbit Charge 5 are also very efficient, and you can measure your REM, deep sleep, light sleep, and bedtime using these tools. 

6- COROS PACE 2 – 20 Days Battery Life

Features:

• 20 days of battery life
• Nylon band for comfortable experience
• ABC sensor
• 24/7 heart rate monitoring
•  Running power metrics for runners

If you’re looking for an affordable GPS smartwatch with best battery life, then Coros Pace 2 is the best option. The battery life of this watch is much better, offering 20 days of daily use time and 30 hours of battery backup in GPS mode. 

Coros Pace 2 also includes UltraMax GPS mode, which gives 60 hours of battery life in GPS mode. If you’re an outdoor enthusiast or a person who is always on the go, Coros Pace 2 is the best watch for you. 

The watch includes an ABC sensor to measure the environmental conditions and direction. Plus, a thermometer enables you to measure your body temperature during training.

In the app, you can also see your VO2 max performance and your heart rate. 

For effective training, it’s essential to have a trainer. Coros Pace 2 offers a personal training program that has over 200 exercise modes for every muscle of the body. During a workout, it measures your heart rate and calories burned. 

To check the effectiveness of your workouts, it includes Muscle Heatmap. This feature allows you to check which muscle group shows the most action daily, weekly, and monthly. 

For runners, it includes Track Run mode that measures your running in a new way. You can see your weak points and start working on them to improve the overall performance.  

 

7- Polar Vantage M2 – 7 Days Of Battery Life

Features:

• 130+ sports modes
• Training Load Pro & Running program
• Integrated GPS
• Fuelwise & Energy Sources
• Nightly Recharge sleep tracking

Polar Vantage M2 is one of the powerful Sports watches. It has a rugged design, premium fitness features, GPS, and long-lasting battery life. 

Usually, Polar watches don’t provide the best battery performance, but Vantage M2 lasts for 7 days in smartwatch mode and 30h in training mode. Various power-saving options allow you to use the watch for over 100 hours in training mode. 

You will get 1.2” always on display with 240 x 240 resolution. The display is not as vibrant and bright as Coros Pace 2, and you will struggle to view it in certain lower lighting conditions. 

Polar Vantage M2 is a fitness-focused watch with multiple sensors to track your daily fitness and training. This watch has high-end training features for pro athletes and fitness enthusiasts. 

The sports tracking in Vantage M2 is impressive; you will get 20 different sports modes for indoor and outdoor training. You can also customize your sports profile, add new or delete unnecessary profiles. 

For nutrition-conscious people, Vantage M2 includes a FuelWise function that allows you to set up reminders for your crabs. The feature automatically calculates how many carbs you need for your session. 

The new Nightly Recharge feature is impressive and automatically calculates your body recovery overnight. For sleep tracking, there is an efficient Sleep Plus Stages function that tracks the quality, duration, and time spent in each sleep stage overnight. 

8- Garmin Instinct 2 – 28 Days Of Battery Life

Features:

• 28 days of battery life
•  Built-in 3-axis compass
• VO2 max
• Smart notifications
• More advance training features
• Multi-GNSS Support
• 10 ATM water rating

Instinct 2 is another Garmin latest watch which is jam-packed with training features. This Garmin watch is specifically designed for outdoor workers, and it’s the best smartwatch with long battery life.

The battery life of Instinct 2 is much more than high-end smartwatches. It comes in different variants; solar and non-solar. The solar variant is the best option if you want more extended battery performance. 

The non-solar variant of Garmin Instinct 2 gives 28 days of battery timing in smartwatch mode and 30 hours in GPS. At the same time, the solar variant works for unlimited time and 48 hours in GPS mode. No other Garmin Watch offers such impressive battery life. 

As compared to the predecessor, Instinct 2 includes various health tracking features. Firstly it has a wrist-based heart rate monitor, which gives accurate results and sends HRV alerts. 

You can also track your blood oxygen saturation with Pulse Ox, the core feature of measuring overall wellness. Fitness Age is a new feature in this watch that estimates your age based on your heart rate and daily activities and tells if your body is older or younger than you are.

Instinct 2 gives a comprehensive breakdown of your sleep stages, and you can also add a sleep widget on the screen.

Because of accurate sensors, the Instinct 2 also measures your high-intensity workouts. It includes profiles for HIIT workouts, including EMOM, AMRAP, Tabata, and custom. Just like other Garmin watches, Instinct 2 also includes different sports profiles.

Moreover, the watch is 10 ATM water resistant, so you can use it for different water activities. It also has an underwater wrist-based heart rate to measure your water sports.  

9- Amazfit Band 7 – 18 Days Of Battery Life

Features:

• 18 days of battery life
• 120+ Sports modes
• 5 ATM water rating
• Built-in Alexa assistant
• 28 g weight
• Comprehensive health management

If you’re on a budget but still want a smartwatch with longest battery life, then look at Amazfit Band 7. This band has a unique design and is a comfortable Silicon band. You can also do voice searches and control smart home appliances with a built-in Alexa assistant. 

Amazfit Band 7 comes with much-improved battery life. Now it gives you 18 days of battery backup with typical usage and 28 days in battery saver mode. I know you can never have such an extended battery life at such a price tag. 

This new band 7 comes with a 1.47” HD AMOLED display with a resolution of 198 x 368 pixels that feels vibrant. Just like Amazfit GTS 4 mini, Band 7 sync with the Zepp OS app and watch real-time sync data with this app. 

Apart from a long-lasting battery, this budget-friendly track also offers a comfortable design. It only weighs 28g which feels very comfortable, especially sleep tracking on this tracker is very impressive. You can wear this tracker 24/7 without feeling any burden on your wrist.

Amazfit band 7 offers all the valuable fitness features you need to achieve your goals. Like other smartwatches, it offers a heart rate monitor with HRV and high stress alerts. 

In such a price range, SpO2 tracking is a big plus; now, you can monitor your blood oxygen saturation level right on your wrist. Band 7 also tracks your stress and includes a breathing app to reduce stress. 

There are over 120 sports modes which are insane. You can track every single indoor or outdoor activity with Amazfit Band 7. Its smart recognition system automatically detects your few exercises like running or cycling. 

10- Honor MagicWatch 2 – 14 Days Of Battery Lfe

Features:

• 5 ATM water resistant
• 14 days of battery life
• Stainless steel bezel
• Built-in speaker and microphones
• VO2 max and other advance health features

Honor is a well-known brand in making smartphones and smartwatches. The brand mainly focuses on giving extended battery backups. The Honor MagicWatch 2 lasts for 14 days in smartwatch mode. Under the $197 price tag, this is the best smartwatch with long battery life.

MagicWatch 2 is similar to the Galaxy watch, and includes a 1.39” AMOLED display with 454 x 454 resolution at 326 PPI resolution. The watch includes many watch faces, so you can choose one that matches your outfit.

The bezel is made of stainless steel, giving the watch a more premium look. The watch also looks durable and has a 50-meter water-resistant rating. Underwater this Honor watch works perfectly and tracks swimming metrics like heart rate, calories, distance, and speed. 

Honor MagicWatch 2 includes a built-in speaker and microphone for answering calls directly from the wrist.

MagicWatch 2 includes different types of fitness features. First, there is a SpO2 sensor, but this feature is only available in selected countries. You will also get VO2 max that tracks your respiration, but it only works with a few sports modes. 

Comparison Table

Watch Model	Battery Life	Weight	GPS	Display
Garmin Fenix 7	Up to 18 days	7983g	Yes	1.3″  Transflective memory-in-pixel (MIP)
Garmin Forerunner 945	Up to 14 days	50g	Yes	1.2″  Transflective memory-in-pixel (MIP)
Amazfit GTS 4 Mini	Up to 15 days	19g (without strap)	Yes	1.39″
TicWatch Pro 3	Up to 72 hrs/ 45 days typical mode	42g	Yes	1.4″ AMOLED display
Fitbit Charge 5	Up to 4 days	27g	No	1.04″ AMOLED display
Coros Pace 2	20 days	34g	Yes	1.2″ color display
Polar Vantage M2	7 ays	45g	Yes	1.2″ color display
Garmin Instinct 2	28 days	52g	Yes	0.9″ monochrome
Amazfit Band 7	Up to 18 days	28g	Yes	1.47″ AMOLED display
Honor MagicWatch 2	Up to 14 days	41g	Yes	1.39″ AMOLED display

Guide To Buy Best Smartwatch With Longest Battery Life

Many smartwatches are available on the market, and choosing a smartwatch with extended battery life is difficult.

Before buying a smartwatch, you must consider a few factors like features, compatibility, design, performance, brand etc. If you research properly before making a purchase, it will save your money and a lot of time. 

1- Battery Life

The first thing is the battery life which is our main concern. Smartwatches with long battery life make you stress-free of charging them repeatedly. Typically most smartwatches give one week of battery backup.  

But few smartwatches like the Garmin watch last up to two weeks or more. Especially for an outdoor person, it’s essential to have a smartwatch with long battery life. Secondly, you also have to check that your watch supports a quick charging feature; it can save you a lot of time. 

2- Training & Fitness Features 

If you’re an athlete, you need to have a smartwatch with various training features. Smart Watches like Garmin Forerunner 945, Instinct 2, and Coros Pace 2 offer advanced training features. 

Also, your smartwatch must be capable of measuring essential health metrics like SpO2, sleep tracking, HRV, stress, and calories. Using these metrics, you can easily improve your fitness performance. 

If you want extra health features, you have to invest extra money. Smartwatches like Garmin instinct 2, Fenix 7 and Amazfit GTS 4 mini offer advanced fitness features. 

3- Design 

You can skip this party if you’re not a fashion enthusiast. Design is also an essential factor for some people. A smartwatch with a sleek shiny bezel gives a more premium look than a smartwatch with a thick and plastic bezel. 

Secondly, you should also consider the durability of a smartwatch. If you’re working in outdoor environments, you must have a durable smartwatch. Your watch should also have a 5 ATM water-resistant rating.

4- Compatibility 

Most people face compatibility issues once they buy a smartwatch. So first, you should look for compatibility options. Avoid buying Apple watches if you have an iPhone. Similarly, Galaxy watches do not work correctly with the iPhone. 4

Similarly, Garmin watches work perfectly with both Android and iPhone. But on iPhone, Garmin lacks a few features like replying to text SMS. 

5- Budget

The market is full of smartwatches ranging from $50 to over $1k. So before getting any smartwatch, you should have a fixed budget; under that budget, you can easily search for a suitable smartwatch.

Typically people go for smartwatches for between $300 to $500. You can easily get the best smartwatch with long battery life and premium fitness features in this price range. 

FAQs

Final Words

We have compiled this detailed guide after deep research. Now it’s up to you which smartwatch you want according to your budget and need.

All the smartwatches we reviewed are from top brands, and you can confidently invest in these brands.

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