Smartwatch with Longest Battery Life

Longest Battery Life Smartwatches Review

Smartwatches’ battery life varies significantly more than with other technology products such as tablets, laptops, and smartphones. Their batteries, usually relatively small, have to juggle efficiency and power as the GPS feature, Bluetooth, 4G, and Wi-Fi are in a battle for energy with the barometers, accelerometers, heart rate monitors, and a display expected always to show the time. The longest battery life smartwatch does not come by easily.

Most times, it occurs that more functionality translates to shorter battery life. It is understandable how the feature-rich smartwatches such as Apple and Samsung models require the charging docks more frequently than the hybrid watches. If you are looking for a smartwatch with long battery life, then you are in the right place. This article highlights five of the best smartwatches with longest battery life in the market today.

List of The Best Smartwatches with Longest Battery Life

1. Garmin Fenix 6X Pro Watch - The Longest Battery Life Smartwatch

The Garmin Fenix 6X Pro Watch will exceed your expectations. This premium multisport GPS watch is well designed to offer top performance. It features a rugged yet sophisticated design with a large 1.4-inch display readable even in sunlight. Moreover, it comes with an enhanced estimated wrist pulse ox and heart rate monitor so you can easily keep tabs on your health.

These features also support altitude acclimation at high elevations and sleep monitoring for better quality sleep. There is also a wide range of advanced training features, including the PacePro that enables grade-adjusted pace guidance throughout all your activities, training status estimates, and environmentally adjusted VO2 max.

On top of that, this Garmin smartwatch is your ultimate outdoor companion. It comes with preloaded TOPO maps and over 2000 ski maps that you can use to navigate the outdoors easily. Furthermore, it supports multiple global navigation satellite systems with built-in sensors for barometric altimeter, gyroscope, and 3-axis compass. This smartwatch has been tested to military standards for water, shock, and thermal resistance.

As a longest battery life smartwatch, it can operate for 21-days with a single charge, and its battery life is impressive too. There are customizable power manager modes that control how the various sensors and settings will affect battery life. The battery saver mode can give you an extended lifespan of up to 80 days. Although Garmin smartwatch also comes with solar-powered in other models. This versatile watch is styled for all-day wearability. It also offers smart notifications when paired with a compatible smartphone so you can stay connected to friends and family. It is the best battery life smartwatch.


  • Enhanced estimated wrist heart rate
  • Scratch-resistant sapphire lens
  • Rugged, sophisticated design
  • Advanced training metrics
  • Preloaded TOPO maps
  • PacePro technology


  • Conveniently sized sunlight-readable screen
  • Preloaded TOPO maps for easy navigation
  • Heart rate monitor and pulse ox
  • Rugged design for outdoor use
  • Advanced training features
  • 21-day long battery life


  • Limited app selection

2. Amazfit GTS 2 Smartwatch - Best Battery Life Smartwatch

The Amazfit GTS 2 Smartwatch will meet your needs. This smartwatch features an exquisite 3D curved Bezel-less design that creates an integrated visual experience. Moreover, the dynamic curves of the aluminum alloy body deliver a light and comfortable wearing experience.

Additionally, the watch incorporates a diamond-like carbon coating that provides wear and scratch-resistant screen to enhance the lifetime and glass quality greatly. The AMOLED screen offers excellent color and clarity for smooth readability with the always-on display. This smartwatch comes with a wide range of faces and themes, so you can choose one that perfectly meets your tastes and preferences.

Besides that, this Amazfit GTS fitness smartwatch comes with blood-oxygen saturation measurement, so you can always keep tabs on your health. This feature helps you understand your physical condition better when you engage in intense physical or mental activity. Furthermore, it features a precision 24/7 heart rate monitor to keep your heart rate in check at all times. Also, it supports in-depth sleep monitoring so you can understand your sleep quality better.

It also provides you with sleep quality analysis and offers advice for improvement based on a night’s sleep. That’s not all; it comes with a built-in microphone and speaker that allows you to answer Bluetooth calls hands-free. The massive 3GB local storage will enable you to store your favorite playlists. These features work well with the 246mAh battery that can last you up to 7 days in normal usage. That’s what makes it the best battery life smartwatch.


  • Blood-oxygen saturation measurement
  • PAI Health assessment system
  • All-day heart rate monitoring
  • Personalized watch faces
  • Long-lasting battery
  • Exquisite design
  • AMOLED screen


  • Unique design for stylish wearing experience
  • Boasts hands-free Bluetooth calls
  • Reliable sleep quality monitoring
  • Controls music playback
  • Long 7-day battery life


  • It does not come with a GPS

3. Mobvoi TicWatch Pro 3 GPS Smartwatch Longest Battery Life

You can never go wrong with the Mobvoi TicWatch Pro 3 GPS Smartwatch. This smartwatch runs on Google’s WearOS software. It comes with built-in sleep and activity tracking features to help you in your fitness and health journey. Moreover, it employs an innovative technology that ensures a longer battery life.

What’s, its unique dual-layer display supports both smart mode and enhanced primary mode. The smartwatch’s extended battery life is 45 days on enhanced primary mode and three days in smart mode. Also, it features an updated chipset Qualcomm Snapdragon Wear 4100 platform for a better experience thanks to the more precise interactions and smoother performance.

What’s more, this smartwatch comes with advanced fitness and health monitoring features such as built-in GPS for accurate estimations, a 24/7 heart rate monitor, multiple sport modes, and a barometer, all empowered by a precise sensor. There are also new functions included in this smartwatch-like noise detection, sleep tracking, stress monitoring, and so on.

Furthermore, this watch features a premium design with a stainless-steel bezel, a 1.4-inch screen, and an AMOLED display for easy viewing. The screen has an auto-adjustable brightness with a durable and anti-fingerprint glass cover. The band is lightweight and more comfortable. Also, this watch comes with a built-in speaker and mic and supports Google Pay for added convenience.


  • Advanced health and fitness monitoring
  • Built-in speaker and mic
  • Large AMOLED display
  • Long-lasting battery
  • Updated chipset
  • Premium design


  • Premium design w/durable and anti-fingerprint glass cover
  • Advanced health and fitness monitoring features
  • Updated chipset for a better experience
  • NFC payment supports Google Pay
  • Lightweight and comfortable
  • Long 3-day battery life


  • Limited app selection

4. Fitbit Versa 3 - Best Smartwatch with Longest Battery Life

Satisfaction is guaranteed with the Fitbit Versa 3 Health & Fitness Smartwatch. It is the ultimate fitness companion. Firstly, it comes with an integrated GPS that ensures accurate estimation of distance traveled, step count, and calories burned. The 24/7 heart rate monitor always keeps you on tabs on your health.

Furthermore, the active zone minutes feature allows you to get the most out of your workouts. They work to help you gauge your effort during exercises by giving off a buzz when the intensity is increased. The sleep tracking and sleep score function allow you to understand your sleep quality better every night. Moreover, there is an incorporated voice assistant that you can use to set reminders, check the weather, and so on.

Another thing is, this smartwatch boasts of a thoughtfully crafted design with a flexible infinity band and lightweight design. The large clock face features an AMOLED display for easy viewing of stats and notifications. This watch is also swim-proof, so you have nothing to worry about. This smartwatch battery life is an impressive six days plus one day. It offers fast charging of only 12 minutes. The infinity band is comfortable for all-day wear with a flexible design and quick-release mechanism.

Besides this, Fitbit Versa 3 watch comes with thousands of clock faces to choose from and hundreds of app to work with. The Fitbit Pay app allows you to upload your debit and credit cards so you can pay for your purchases without your wallet. You can also store and play your music, audiobooks, and podcasts from your watch. The built-in mic allows you to take Bluetooth calls hands-free, adjust volume, and send callers to voicemail.


  • Google Assistant and Amazon Alexa
  • Built-in mic and speaker
  • Active zone minutes
  • 6+ day battery life
  • Heart rate tracker
  • Music control
  • Built-in GPS


  • Voice assistant feature allows weather check, set reminders, and so on.
  • Tracks pace and distance accurately with built-in GPS
  • Accurate sleep tracking and sleep score
  • Active zone minutes for workouts
  • Continuous heart rate tracking
  • Fast charging


  • Always-on display kills battery life.
  • App selection is limited.

5. Matrix PowerWatch - Best Self-charging Smartwatch

The Matrix PowerWatch is well worth your money. This Matrix smartwatch employs the patented thermoelectric technology that keeps it charged using the natural body heat. It also works as an automatic smart watch and fitness tracker that records metrics like sleep, steps, and calories burned with highly accurate sensors.

Moreover, it is easy to use and is compatible with Samsung, iPhone, tablets, Galaxy, and iPads. This smartwatch comes with a customizable, stylish watch strap for an elegant wearing experience. It boasts of military-grade durability. It is water-resistant and allows users to dive to a 50m depth with the reinforced bezel.

Additionally, this automatic smartwatch is also the best self-charging smartwatch. As a solar-powered smartwatch, it uses the solar UV rays to charge its smartwatch battery. You need not worry about the smartwatch battery replacement or looking for a charging outlet. It features a real-time power meter that displays the amount of electricity your body heat is producing. The advanced thermoelectric technology also ensures an accurate calorie count and step counter.


  • Advanced thermoelectric technology
  • Military-grade nylon strap
  • Real-time power meter
  • Accurate calorie count
  • Water-resistant
  • Step counter


  • Metrics such as steps, calories, and accurate sleep measures
  • Seamlessly syncing with other smart devices
  • Customizable, stylish watch strap
  • Comfortable and easy to use
  • Military-grade durability
  • Self-charging


  • Weak display


How long do Smartwatch Batteries last?

A smartwatch battery is usually small in size and therefore does not last as long as other technology devices. Most smartwatches have a battery life that lasts approximately 1 to 2 days. That, however, depends on the usage of the timepiece. Also, some models come with power-saving modes that can help to extend the battery life.

How can I make my Smartwatch Battery last longer?

The battery life is one of the essential features to consider when it comes to purchasing smartwatches. Generally, the more features a smartwatch has, the more energy is used, resulting in battery drainage. Here are some tips you can use to help extend the battery life of your smartwatch.

Blocking and managing unnecessary notifications may help in boosting battery life. You can disable notifications from less important apps or even uninstall them from your watch. Turning off Wi-Fi or Bluetooth synching is also another tip. You can disable these connections when not in use or do not require them to save the battery life.

Another thing, for you to adjust the level of screen brightness. Reducing the brightness will save your battery and protect your eyes at the same time. Furthermore, you can choose to use the snooze option for every notification. This way, the screen will not light up or vibrate but instead buzz while saving the battery. Also, disable writ gestures, if any, to boost the battery life.

Which Smartwatch has the Longest Battery Life?

The Garmin Fenix 6X Pro is top on the board as the smartwatch with longest battery life based on battery life. It has a claimed 21-day runtime, smartwatch longest battery life. This watch is large and houses a large battery. It also comes with numerous features making it great for the outdoors.

Final Verdict on Choosing The Longest battery Life Smartwatch

In this day and age, smartwatches have become a center of attraction in fitness and lifestyle. These days, you can find numerous smartwatches from different brands with different features that you will have to consider various factors before taking your pick. Moreover, battery life is one of the essential elements that you will have to consider. The list above outlines a smartwatch with the longest battery life to make your search easier.

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