The Longest Battery Life Smartwatches of 2021

One of the issues that most smartwatch users face is battery life. Among the many watches in the industry, most of them last anywhere between 12-hours and 24-hours. Most people are now searching for the longest battery life smartwatch. Can you imagine getting a model that can run for over a week with a single charge? Some even go for 14 days, which is highly impressive considering it has to keep operational performance 24/7. 

We have updated our list of Best Smartwatch for Texting Oct, 2020

We monthly buy products and test all the Smartwatch brands. During the last 12 months, a couple of Top smartwatch brands on the list have lost their position. We have updated our list of Best Smartwatch for Texting for Oct, 2020, Please have a look. If you are looking for the Best Smartwatches for Teenagers or kids then you may have a look into this article Best Smartwatches for Teens and smartwatches for kids before buying a good and suitable smartwatch.

We assume you’re searching for a similar model, and that’s why you’re here. Right? Welcome. We’ve taken our time and resources to make sure it gets easier for you to buy a smartwatch with the most extended battery life. In this post, we’ve prepared for you a list of the top 5 smartwatches you can buy and expect the best battery life. Some don’t even need a smartwatch battery replacement as they’re self-charging or automatic.

1. Amazfit GTS Fitness - The Longest Battery Life Smartwatch

Our list of the best battery-life smartwatches starts with the highly rated model. A heart rate monitor, music control, and a long-lasting 14-Day Battery Life are some of the features you get to enjoy if you invest in this model, the Amazfit GTS Fitness Smartwatch.

It’s a smartwatch you can use for your health and fitness tracking the whole week without thinking of recharging. According to its maker, the smartwatch optimized its power consumption to ensure impressive performance and extended battery life.

The watch tracking system uses a precise optical heart rate monitor that keeps a clean, accurate, all-day heart rate record. You can also get real-time steps taken, calories burned, distance traveled, sleeping patterns, and quality of sleep. Its water resistance allows you to track your swimming and calories burned while swimming.

Besides this, it’s rated 5ATM water-resistant. That allows you to swim with it up to the depth of 50 meters. And you should know, the watch also supports multiple swimming scenarios.

Away from the tracking, the watch comes with a Bluetooth music control system designed to allow you to control your favorite playlist from your wrist while you work out.

This Amazfit GTS Fitness Smartwatch has a stylish screen that displays the information quite well, all thanks to its 1.65-inch wide AMOLED always-on display. The design is also fashionable.

It’s a watch you can wear with most clothes. However, it’s more of a men-designed watch but not limited. You can still wear it with official attire.

The price of this watch is a bit high considering the features it brings to the table. But because of its smartwatch’s most extended battery life, you can compromise.

Features

  • AMOLED Display and Editable Widgets
  • Customized stylish square screen
  • Supports 12 Sports Modes
  • 5ATM Water Resistance
  • 14-Day Battery Life
  • 2.5D curved glass

Pros

  • High-precision heart-rate monitoring
  • Supports several swimming scenarios
  • Slim Durable Metal Body
  • Long-lasting endurance

Cons

  • On the expensive side

2. Garmin 010-02293-10 Instinct - Best Battery Life Smartwatch

The next longest battery-life smartwatch is the Garmin Instinct, a solar-powered smartwatch. That means you will never have to worry about anything when it comes to batteries. It comes as a rugged outdoor smartwatch with a 100-meters water rating.

After researching the making of this model, we found that Garmin builds this model by following U.S military standard 810 to give it exceptional water, thermal, and shock resistance. You can use it to track your activities, including biking, swimming, running, and more. If you’re looking for the best self-charging smartwatch to help you understand your health and wellness, this is it.

According to user reviews, this Garmin smartwatch can monitor how your body utilizes energy by monitoring your heart rate, tracking sleep estimates, and stress using its body-batter energy monitoring.

Its built-in sports app ensures you can track your all-day performance in one place. Since it uses a built-in 3-axis compass and a barometric altimeter coupled with multiple GPS services, you can use it to track your way back even in the most challenging environments.

Garmin Instinct can provide the most extended battery life for those who explore under the sun. And thanks to the watch’s power manager, you can view how the setting and sensor impact the watch’s battery life and make adjustments on the fly. If you’re after the longest-battery-life smartwatches to use indoors, then this isn’t your model. It would be best if you used it outdoors and when there is sunlight.

You can now do what you want while also enjoying the solar and keeping your smartwatch running. The self-charging mechanism allows the watch to stay with power all day long. The multi-service positioning system can help you track your way back when the adventures take you deep into the forest. Apart from using it for hiking, you can also use it for outdoor activities such as running and walking.

Features

  • Durable, rugged military-grade construction
  • Multiple navigation satellite systems
  • Heart rate & stress tracking
  • Battery Power Manager

Pros

  • Thermal, shock, and water resistance
  • Incredible battery life
  • Built-in Sports Apps
  • Health Monitoring
  • Self-charging

Cons

  • Solar self-charging is a challenge for indoor uses

3. Willful - Best Budget Smartwatch with Longest Battery Life

Here comes the most economical choice in smartwatches with longest battery life and highly-rated model, the Willful Smart Watch, designed to be compatible with Android and iOS phones. It’s here to make your life better. As confirmed by its previous users, this model has everything you might ever need from a budget-friendly watch.

It has a style that you might not see in most of the smartwatches available. You can use it to track your fitness thanks to supporting up to nine sports, including walking, running, yoga, and more. It’s a model you can use to record your all-day activities accurately and track your workouts and physical status during exercise.

Apart from this, it has a 24/7 heart-rate monitor and a reliable sleep tracker. According to its users, it monitors real-time heart rates automatically and carries out comprehensive sleep quality analysis. That way, it can help you develop a healthier lifestyle.

The best part about this model is, its smartwatch battery life is impressive. It’s rated the best for being the longest battery-life smartwatch. We think you should know; it can run for seven days straight in regular use and 30 days straight in standby mode thanks to its high capacity battery and low power consumption.

And it doesn’t end there; we found that this Willful smartwatch also has practical features and tools such as a stopwatch, timer, and alarm. Besides this, it has a music controller for music lovers and a deep breather guide for yoga and meditation enthusiasts.

There is also a find-phone app to track your mobile phone when misplaced. Its VeryFitPro can be installed on Android 4.4 or iOS 8.0 and above. You should know, though, the app isn’t available for tablets or PCs.

Features

  • Low power consumption design
  • 24/7 Heart Rate Monitor
  • Accurate Fitness Tracker
  • Long-Lasting Battery
  • Sleep Tracker

Pros

  • Compatible with most iOS 8.0 & Android
  • Monitors real-time heart rate automatically
  • Accurately record all-day activities
  • Supports nine sports
  • Waterproof

Cons

  • VeryFitPro is not yet available for PCs or tablets.

4. Huawei Watch GT 2 - Best Smartwatch with long Battery Life

Another best battery-life smartwatch is the Huawei Watch GT 2, available as a fitness tracker and Blood Oxygen Monitor. It uses Huawei’s self-developed wearable chip Kirin A1 that has a dual-chip design and smart power-saving tech. The system allows this smartwatch to serve you for two weeks, day and night.

Besides this, it comes with a minimalist aesthetic design where the maker integrates a durable-high quality 3D glass with a bezel-less vision. This fine craftsmanship has additional details on the case and a classic style. It’s a model you can wear for almost any event and almost everything that needs an accessory.

If you’re a professional sportsperson, you can benefit from the watch’s professional sports trainer to track the workouts with an accurate position. It uses an authentic TruSeen innovation that delivers precise heart rate monitoring according to previous users.

It makes an excellent and professional fitness companion both indoors and outdoors. That’s why most of its customers consider it as an everyday life assistant. If you’d like your favorite playlist to follow you even as you work out, you’re in luck. This smartwatch comes with in-device music control allowing you to play, pause and stop your favorite music right from your wrist.

You should know, though, there is no warranty for the international version. That can be a problem, especially if the item arrives with a defect.

Features

  • HUAWEI Self-developed Kirin A1 Chip
  • Full-time professional Fitness Trainer
  • Intelligent power-saving technology
  • TruRelax Pressure Monitoring
  • Wide AMOLED Display
  • 3D Glass Screen

Pros

  • Two Built-in Positioning Systems
  • Real-time Heart Rate Monitoring
  • Impressive Positioning Accuracy
  • Accurate Touch Response
  • 15 Workout Modes

Cons

  • No Warranty for International Version

5. PowerWatch 2 Watch - Best Solar Powered Smartwatch

The PowerWatch 2 matrix smartwatch, the longest battery-life smartwatch on the list, comes as an automatic smart watch that you power. What does that mean? It uses your body heat to power and charges it. Behind the nice-looking case is a unique thermoelectric technology working with solar power to make this possible.

Now you have a way of managing all aspects of your health and lifestyle without regularly charging your smartwatch. This matrix watch also comes packed with smartwatch features routinely updated.

As confirmed by most of its users, this self-charging smartwatch comes with new and improved sensors. They can record metrics like heart rate, calories, and steps. Besides this, the sensors can monitor your sleep with a better accuracy than most watches in their price range.

Its activity tracking works both indoors and outdoors. You can use it when running, CrossFit, HIIT, and cycling. If you’re asking about waterproofing, this model is water-rated 200 meters. That means you can wear it while swimming or diving.

PowerWatch is made from lightweight yet durable aircraft-grade aluminum and scratch-resistant sapphire glass. That gives it the resistance to wear you might need if you need a long-lasting smartwatch. And coupling the construction with the self-charging battery, you can expect this model to last a lifetime.

It comes equipped with a built-in GPS location tracking system that will show the routes and altitude while you work out. It makes tracking your progress easy and convenient. It’s compatible with iPhone, iPad, tablets, and Samsung. As you might have noticed, it has a compatibility issue with Android phones, which is a drawback.

Features

  • Patented thermoelectric technology
  • Scratch-resistant sapphire glass
  • Water-resistant up to 200M
  • Aircraft-grade aluminum

Pros

  • Compatible with iPhone, Samsung, iPad, and tablets
  • 3rd party app integration options included
  • Effortless and intuitive tracking

Cons

  • Not compatible with Android phones

FAQs

How Long Do Smartwatch Batteries Last?

Most smartwatch batteries last between 1-3 years before needing a smartwatch battery replacement. However, the timeframe varies substantially depending on the device usage and battery performance. In terms of battery usage life, most of them last anywhere between 12-24 hours. Apple smartwatches have the least when it comes to high-end models with a battery life of 18-hours. 

How Can I Make My Smartwatch Battery Last Longer?

Here are the tips to help you make your smartwatch battery last longer: 

  • Shut off the always-on setting to allow the screen to turn off.
  • Use a watch face with no animations or interactive abilities. 
  • Adjust the watch’s screen brightness; keep it as low as you can. Increase it only when necessary. 
  • Turn off those notifications you don’t need.
  • Uninstall unnecessary apps. If you installed an app recently and your battery life is reduced, it might be the culprit of the power drain. Uninstall it. 

Which Smartwatch Has The Longest Battery Life?

The smartwatch with long battery life is an automatic model that recharges using the user’s body heat. It keeps charging as long as your body is producing warmth. The next model in this category is the solar-powered smartwatch like the Garmin Instinct. All you need is to expose it to the sun during the day, and it will power you through the night. If you need a regular rechargeable model with the most extended battery life, that would be a 14-day endurance.

Final Verdict on Choosing The Longest Battery Life Smartwatch

The best battery-life smartwatches aren’t easy to find. However, we’ve made the entire process as seamless as it can be. The list above gives you the top-rated models available. We’ve done detailed research on them, and what you read in the reviews was recorded after the analysis. We hope you can find a model that meets your needs and proceed to purchase. Good Luck! 

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