Best Smartwatch With Long Battery Life Reviews

Updated January 18, 2021

Though features and designs may vary, smartwatches help you save time, stay connected, and manage your health better. 

Most smartwatches feature unique fitness metrics, such as heart rate sensors and GPS tracking. But there’s a downside to them: they drain the battery quite fast. 

More features usually mean more stress on the battery. Therefore, if you’re looking for a smartwatch with the longest battery life, read on to see which models qualify. 

The smartwatches we reviewed are all excellent options, but they’re all suited for different tastes. Some are advanced enough to replace your smartphones, while others are geared more towards health-tracking.

Read on to know more.

See Our Longest Battery Life Smartwatches

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1 Garmin - Vivoactive 3 GPS Smartwatch
Best For Low Budgets
Garmin Vivoactive 3 GPS Smartwatch
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2 Pebble - Time Steel Smartwatch for Apple-Android Devices Pebble Time Steel Smartwatch
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3 Fitbit - Blaze Smart Fitness Watch
Best Overall
Fitbit Blaze Smart Fitness Watch
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4 TicWatch - Pro 4G LTE Cellular Smartwatch TicWatch Pro 4G LTE Cellular Smartwatch
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5
Best For Higher Budgets
5Garmin Fenix 6X Pro Solar Watch
Garmin - Fenix 6X Pro Solar Power Bundle Watch
Best For Higher Budgets
Garmin Fenix 6X Pro Solar Watch
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6 Amazfit - GTR Smartwatch 24-Day Battery Life Amazfit GTR Smartwatch With 24-Day Battery Life
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7 Skagen - Connected Men's Hagen Titanium and Leather Hybrid Smartwatch Skagen Connected Hagen Smartwatch
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1. Garmin Vivoactive 3 GPS Smartwatch

Highlights
  • Elevate wrist-based heart rate sensor
  • Extra durable Corning Gorilla glass
  • Side Swipe interface
  • Built-in GPS
Best For Low Budgets
Garmin - Vivoactive 3 GPS Smartwatch

Vivoactive 3 is the longest battery life smartwatch that is optimized for fitness-related activities. Suitable for all kinds of weather, this watch is safe to wear while showering, jogging in the rain, or even swimming. 

With an easy-to-read display, whether you’re working out in the rain or sunlight, its Corning Gorilla Glass screen is durable and resistant to weathering and scratches.

Moreover, it’s also incredibly comfortable, lightweight, and user-friendly. The Side Swipe interface lets you scroll and switch between menus and widgets, providing a seamless experience.

As it is primed for fitness and sports use, this longest-lasting smartwatch allows you to design your workouts and download them for offline use. 

You can choose various activities and intervals built around running, swimming, cycling, and cardio.

And it comes with fifteen preloaded sports apps to help you with your fitness journey. Map out your reps, sets, and rest time with ease via this gadget.

And while you’re at it, keep a check on your heart rate with its built-in Elevate heart rate monitoring feature. Users also can test other vital metrics, such as VO2 max levels and fitness age.

Stay connected when commuting, jogging, or working out in the gym. With this smartwatch, you can receive and respond to text messages and view social media notifications and emails. 

Furthermore, you can stream music or LiveTrack your activities with your friends. It’s also beneficial to keep track of your records by syncing your workouts to the Garmin Connect online community.

Specifications

Material:
Stainless Steel
Size:
1.7 x 1.7 x 0.5 inches
Movement:
Electronic/Smart
Case Diameter:
1.7 inches
Watch Strap:
20 mm wide and 230 mm long silicone strap
Battery Life:
Up to 13 hours in GPS mode, Up to 7 days in smart mode

Pros

  • Allows you to make contactless payments
  • Water-resistant
  • Easy to read
  • A multitude of watch faces, apps, and widgets available for free

Cons

  • If not cared for, the button may wear out
  • Screen quality can be better

2. Pebble Time Steel Smartwatch

Highlights
  • Color e-paper screen
  • Water-resistant up to 3 ATM
  • Activity tracker
  • Sleep tracker

The best battery life smartwatch by Pebble is the Time Steel model. It lets you manage all your notifications, social media updates, emails, and calls and keeps you connected with your contacts for extended periods on a single charge.

With a staggering battery life of 10 days, it comes with a built-in activity and sleep tracker to help you stay updated with your schedule.

Moreover, it boasts a new color e-paper screen and sturdy stainless steel construction; you’re sure to be grabbing attention with this classy timepiece on your wrist.

Take a shower or walk in the rain without taking it off your wrist as this watch is water-resistant up to 3 ATM and 30 meters. 

It’s also unfazed in a range of temperatures, from cold sub-zero situations up to baking hot 140°F.

Whether you’re hanging out in casual attire or dressed up for a formal event, this Pebble model won’t look out of place. Put it on your wrist and turn heads wherever you go!

Specifications

Material:
Stainless Steel
Size:
1.59 x 1.48 x 0.41 inches
Movement:
Electronic/Smart
Case Diameter:
1.25 inches
Watch Strap:
22 mm genuine leather adjustable strap
Battery Life:
Up to 10 days

Pros

  • Operable in a wide range of temperatures
  • Sturdy construction
  • Versatile design
  • Water-resistant to 30 meters

Cons

  • Relatively smaller screen as compared to other models; however, the font is readable

3. Fitbit Blaze Smart Fitness Watch

Highlights
  • PurePulse feature
  • GPS connectivity
  • FitStar workouts
  • Simplified heart rate zones
Best Overall
Fitbit - Blaze Smart Fitness Watch

The Fitbit Blaze is the perfect combination of form and functionality. It is the smartwatch with the longest battery life among all contenders in this size and price range.

With this watch, you can maximize every workout and exercise routine while looking classy. 

This smartwatch offers GPS tracking services along with customized FitStar workouts to help you with your exercises. You can also monitor your activities with its activity-tracking feature.

Furthermore, if you get bored with your current watch face, you can choose from a multitude of options. Also, you can easily replace the band if required. 

It can be synced with a smartphone to receive social media updates, emails, and calls so that you won’t be missing out on any important notifications.

Keep a check on the calories burned, distance traveled, steps climbed, and active minutes with this Fitbit watch, and get step-by-step instructions for your fitness regime. 

And with its long battery life, you can work out with ease, without worrying about juking up your tracker.

Specifications

Material:
Aluminum
Size:
10 x 1.67 x 0.43 inches
Movement:
Electronic
Case Diameter:
1.66 inches
Watch Strap:
Leather band comes in small, medium, and large size; measuring between 6.7 - 8.1 Inches
Battery Life:
Up to 5 days depending on usage

Pros

  • Activity tracking
  • Sleep tracking
  • Attractive aesthetic
  • Bluetooth syncing range up to 6.1 meters

Cons

  • Some users felt a slight skin irritation after prolonged use

4. TicWatch Pro 4G LTE Cellular Smartwatch

Highlights
  • Google Pay option
  • 7-day heart history
  • Abnormal heart notifications
  • SOS feature

The longest battery life smartwatch with a particular emphasis on health monitoring and tracking fitness levels, the TicWatch Pro is designed to keep you in sync with your heart. 

Its patented TicMotion technology detects running, brisk walking, and swimming — recording all the data without a prompt. 

With this watch on your wrist, you get 24-hour heart rate monitoring, a daily heart rate line chart, any abnormal heart notifications, and a seven-day history. 

It’s almost like having a medical-grade heart monitor on your wrist. Additionally, it will allow you to track your sleep by recording the quality of your downtime and comparing it with operational data.

This smartwatch also makes wallets redundant with the option to sync your Google Pay account, allowing you to pay effortlessly with a single tap. 

That’s not all! Now, you can make phone calls, send texts, and stream music directly with this watch. Overall, this Pro model is an excellent daily companion with all the features of a heart tracker.

Specifications

Material:
Polyamide & glass fiber, stainless-steel bezel, aluminum back cover
Size:
45.15 x 52.8 x 12.6 mm
Movement:
Electronic/Smart
Case Diameter:
1.5 inches
Watch Strap:
22m Silicone (interchangeable)
Battery Life:
Up to two days on Smart mode, up to 5 days if Auto Switch to Essential Mode, and up to 18 hours of battery life on cellular usage

Pros

  • Makes wallets redundant
  • Send texts
  • Sleep tracking
  • Make phone calls

Cons

  • Some people faced difficulties in telling time in darker settings

5. Garmin Fenix 6X Pro Solar Watch

Highlights
  • Multi-GNSS support
  • PacePro feature
  • Pulse Ox feature
  • Preloaded TOPO maps
Best For Higher Budgets
Garmin - Fenix 6X Pro Solar Power Bundle Watch

This smartwatch from Garmin makes a statement with its big display and titanium coating. Power management is not a worry either since this timepiece is solar-powered and rechargeable. 

Wearers can keep track of their location with its preloaded TOPO maps, ski maps, and multi-GNSS support. 

Moreover, it will help you stay fit by allowing you to track all your health stats, such as VO2 max, advanced training status, and running and cycling dynamics. 

Its advanced sleep monitoring feature will provide insights regarding the quality of sleep you are achieving and whether you are getting as much as your daily activity requires.

Furthermore, with this watch, you can make contactless payments, buy songs, and log onto Spotify while listening to music on your daily walks. 

And if you’re ever faced with a low battery, the solar charging option allows you to recharge this best battery smartwatch with direct sunlight!

Specifications

Material:
Fiber-reinforced polymer with a metal back cover
Size:
51 x 51 x 14.9 mm
Movement:
Electronic/Smart
Case Diameter:
51 mm
Watch Strap:
Silicone 127 - 210 mm, leather 135 - 213 mm, metal 135-225 mm, and Fabric band 135 - 213 mm
Battery Life:
36 hours in GPS mode, Up to 14 days in smart mode

Pros

  • Sturdy construction
  • Solar-powered
  • Access over 500 songs
  • Bluetooth connectivity

Cons

  • Some users felt that HR readings aren't as good as those seen on medical devices

6. Amazfit GTR Smartwatch With 24-Day Battery Life

Highlights
  • Biological tracking optical sensor
  • Smart Sport tracking feature
  • Water-resistant up to 50 meters
  • A full-scale heart-rate monitoring system

The Amazfit GTR is a smartwatch with best battery life, and we’re particularly captivated by its classic aesthetic. It has just the perfect amount of features to classify it as modern. 

Moreover, it has a large, well-illuminated AMOLED display, and you have the luxury of choosing from a range of watch faces when buying one.

It also features a Smart Sport tracking feature, a technology that allows you to record 12 different sports metrics, including running, swimming, cycling, and mountaineering. So, if you’re looking for a multi-sport best battery smartwatch, this should be your pick.

Furthermore, it boasts a heart rate monitoring system with a biological tracking sensor that offers full-scale heart rate tracking. 

It’s also safe to use in water, being water-resistant up to 50 meters. And while you’re swimming, it will allow you to record stats from your sessions.

Lastly, this watch is optimized to save power consumption and lasts a staggering 24 days!

Specifications

Material:
Metal, microcrystalline zirconium ceramics, polymer materials
Size:
47.2 x 47.2 x 10.75 mm
Movement:
Electronic/Smart
Case Diameter:
47 mm
Watch Strap:
22 mm leather strap
Battery Life:
Up to 12 days with always-on heart rate monitoring

Pros

  • Long battery life
  • Multi-sport watch
  • Optimized for saving power
  • Ultra-Long Battery Life

Cons

  • Some customers complained about the GPS sensor acting up at times

7. Skagen Connected Hagen Smartwatch

Highlights
  • Activity tracking
  • Sleep tracking
  • Customizable buttons
  • Automatic time zone updates

This hybrid smartwatch packs a large number of smart features in the frame of a classic watch. 

With this watch, you can connect to your smartphone via the SKAGEN app and receive notifications whenever you get a text, email, or social media update. 

Additionally, it lets you track your sleep progress while you doze off at night and gain insights regarding your activity throughout the day.

Jog in the rain or dive in the pool with this smartwatch on your wrist as it is minimally water-resistant. Its grey titanium case and black dial exude an elegant vibe, making it fit enough to be worn on a night out.

Moreover, it comes with a genuine tanned leather strap that is interchangeable with SKAGEN 20mm bands.

This watch is definitely worth an investment if you’re not too fond of frequent charging hassles — boasting a staggering battery life of 6 months, depending on your usage.

Specifications

Material:
Stainless Steel
Size:
3.54 x 3.54 x 3.54 inches
Movement:
Quartz
Case Diameter:
42 mm
Watch Strap:
20 mm Leather band
Battery Life:
Minimum of six months

Pros

  • Long-lasting battery
  • Bluetooth connectivity
  • Elegant look
  • Interchangeable bands

Cons

  • Some users found the Bluetooth to have weaker connectivity than some other models

Buying Guide For Best Battery Smartwatch

Battery Life

The relationship between battery life and smartwatches is pretty simple: the more features they have, the more energy they will consume — lowering their battery life.

Average Smartwatch Battery Life

Typical smartwatch batteries don’t last more than a day or two. Even watches by Apple and Samsung provide average battery life. 

But if you do your research, you can find models that optimize power consumption through internal software. 

These last longer than average watches, so you don’t have to worry about frequent charging.

Battery Types

Three types of batteries are most commonly used: silver oxide, alkaline, or lithium.

Lithium button cells are larger than the other two batteries and are of the 3-volt cell type. Silver oxide and alkaline cells are smaller, around 1.5 volts. 

Silver Oxide

The silver oxide cell is a successor of the mercury battery and is much superior. Although their construction is quite similar to mercury batteries, they have a higher capacity: around 1.62 volts.

Lithium

Lithium cells are shaped like coins and are often referred to as “coin cells.” They are rated higher than other watch battery types, with the Lithium-Manganese Dioxide being rated at 3.0 volts.

Smartwatch Battery Quality

Don’t expect any smartwatch battery to last you more than a few days, no matter how high the quality. Their batteries are not so different from regular smartphone batteries and offer roughly the same life.

Some watch brands that claim to produce the smartwatch with the “longest battery life” will often add a damning disclaimer. 

This disclaimer would require users to disable battery consuming features such as heart rate monitoring, sleep tracking, and GPS tracking to ensure the advertised longevity.

Solar Powered Options

A solar-powered smartwatch runs on a solar cell, absorbing sunlight or artificial light to charge the solar panel behind the crystal. 

To power the watch, this solar energy is converted into electrical energy. During the night or overcast weather, the device uses stored energy from its rechargeable cell to power up.

Watch Face & Design

Although a watch is meant to tell time, its style is what differentiates between each model. The dial, hands, bezels, and crown are components that differ from watch to watch.

Watch dials can be found in bland, textured, or slightly tweaked variants. Similarly, standard sub-dial options are chronograph, moon-phase, and panda designs, among many others.

The good thing about smartwatches is that you can choose from various analog or digital dial faces.

Features

There’s a smartwatch for every purpose. Whether it’s tracking a run, monitoring your sleep, or your stress, you can find a cocktail of features with each model. 

Let’s take a look at some of the features commonly found these days:

Heart Rate Monitor

Smartwatches with heart rate monitoring technology allow you to regularly check your heart rate, track your data, and be notified of abnormal spikes in your heart’s performance. 

They’re great for managing stress and tracking your heart health.

Activity Tracking

Smartwatches commonly come with activity trackers. These let users stay on top of their fitness game and gain insights into their daily activity statistics. 

This data can help you achieve your fitness goals better and plan your exercise for improved gains. 

Sleep Tracking

A wide variety of smartwatches feature sleep trackers. They can track your sleep duration, your sleep quality, and the phases of your sleep.

GPS Mode

GPS tracking is essential if you’re used to venturing out into uncharted territories. While they consume more battery, they can be a game-changer for training and tracking distances.

Find a watch with this mode to know precisely where you are and how to find your way.

Our Verdict

In our pursuit of the longest battery life smartwatch, we found the Garmin Fenix 6 Pro to be a true masterpiece, but only if you have the budget for it. 

For lower budgets, we would recommend the Garmin Vivoactive 3. If you want a compromise between both and an overall best fit, the Fitbit Blaze is our favorite.

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