Smartwatch with longest battery life in comparison
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Last updated on 07.09.2026
1
Blackview Military Smart Watch for Men (Answer/Make Calls), 1.45" Fitness Tracker with 100-Day Battery/Flashlight/Compass/Heart Rate/SpO2/Sleep, 150+ Sports IP68 Waterproof Smartwatch for iOS Android
Smart Watch for Women, Answer/Make Call, Alexa Built-in 1.8" HD Fitness Watch with Heart Rate SpO2 Sleep Tracker, Ladies Smartwatch for iPhone Samsung Android, 120 Sport, 3ATM Waterproof Step Counter
Tensky
13% off
free shipping
To the product (1 offer)
9,6
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4
Smart Watches for Women, 1.27'' Ultra-Clear Fitness Watch with AI Voice & Bluetooth Calls, 7/24 Heart Rate/Sleep/SpO2 Monitor, 110+ Sports Modes, IP68 Waterproof Smart Watch for Android iOS (Pink)
Woneligo
25% off
free shipping
To the product (1 offer)
9,6
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5
Smart Watch for Women, Answer/Make Call, 1.32'' AMOLED Ultra-Clear Screen Fitness Trackers with Heart Rate/Sleep/SpO2 Monitor, Smartwatch for iPhone/Samsung/Android, 110+ Sport Modes, 3ATM Waterproof
aeac
free shipping
To the product (1 offer)
9,6
Show on Amazon
6
Fitbit Google Versa 4 Fitness Smartwatch with 3 Months Google Health Membership Included and up to 6 days battery life - compatible with iOS & Android, Black/Graphite Aluminium
Fitbit
10% off
free shipping
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9,5
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7
Smart Watch for Men Women, Answer/Make Calls, Alexa Built-in, [1.8" HD Screen] Smart Watches for iPhone/Samsung/Android, Fitness Watch with Heart Rate Sleep SpO2 Monitor,IP68 Waterproof, 100+ Sports
Yoever
free shipping
To the product (1 offer)
9,5
Show on Amazon
8
Fitness Tracker, Smart Watch for Women Men with 24/7 Heart Rate/Blood Pressure/Blood Oxygen Monitor,Sleep Tracker,Step & Calorie Counter, IP68 Waterproof Fitness Watches Compatible with Android&iPhone
RLQA
67% off
free shipping
To the product (1 offer)
9,4
Show on Amazon
9
Smart Watches for Women Answer/Make Calls, 1.57'' AMOLED Smartwatch for iPhone/Samsung/Android，Womens Smart Watch with Heart Rate/SpO2/Sleep Monitor, Fitness Watch 120+ Sport Modes 3ATM Waterproof
Fitpolo
free shipping
To the product (1 offer)
9,2
Show on Amazon
10
Amazfit Active 2 Smart Watch for Men 44mm, NFC Payment, AI, GPS & Free Maps, 10 Day Battery, Fitness Tracker with 160+ Sports Modes, 5 ATM Water Resistant, Smartwatch for Android & iPhone
You might also be interested in these smartwatch with longest battery life.
Cillso Smart Watch, Alexa Built-in, 1.83" Bluetooth Calling Fitness Watch | HD Display, Heart Rate/Sleep Monitor/Stress/Step Counter, 110+ Sports Modes, IP68 Waterproof Activity Tracker for Android iOS
Cillso
£ 49.99
free shipping
To the product (1 offer)
6% off
HUAWEI WATCH FIT 3 Smartwatch for Men Women, AMOLED Display, Black Strap | Up to 10 Days Battery Life, Bluetooth Calls, GPS Smartwatch, Aluminum Case, Fitness Tracker, for iOS & Android
HUAWEI
£ 79.00
free shipping
To the product (5 offers)
Smart Watches for Women,1.8" HD Ladies Smartwatch Compatible with iPhone/Samsung/Android- Answer/Make Calls, Alexa Built-in, Heart Rate/SpO2/Sleep Monitor
【Stay Connected, Hands-Free】Never miss a beat in your busy life. With the Gydom smartwatch, you can make, answer, or reject calls on the go—like discreetly tapping to dismiss an unexpected call. Glance at your wrist to read crucial notifications from WhatsApp, Facebook, Instagram, or Email without reaching for your phone. What’s more, it comes with the built-in Alexa voice assistant, keeping you informed and effortlessly in control.
£ 45.88
free shipping
To the product (1 offer)
38% off
Smart Watch for Men Answer/Make Calls, 1.43" AMOLED Military Smart Watch with GPS/Torch/Compass/Altitude/Heart Rate/Health Monitor/Blood Oxygen, 5ATM Waterproof, 160+ Sports Smartwatch for iOS Android
Jugeman
£ 49.99
free shipping
To the product (1 offer)
XIAOMI Smart Band 10, Fitness Tracker for Men Women, 21-day battery, Silver | Fast charging, Professional sleep tracking, 150+ sports modes, Health monitor, iOS & Android, 5ATM, multi-material frames
XIAOMI
£ 39.99
free shipping
To the product (1 offer)
Armfit HULK Smart watch with AMOLED Always On Display Smartwatches for men, BT Calling Waterproof Fitness Watch with Heart Sleep Monitor for Android iOS (Black)
ArmFit
£ 38.99
free shipping
To the product (1 offer)
Hwagol Military Smart Watch for Men, 1.52" HD Smart Watches with Heart Rate/SpO2/Sleep Monitor, 110+ Sports Modes Fitness Tracker, 500mAH Battery Led Flashlight Outdoor Smartwatch for iOS Android
Hwagol
£ 39.99
free shipping
To the product (1 offer)
Noise Endeavour Pro Military Rugged Smartwatch, 28Days Battery, Built In GPS & Flashlight, Scratch Resistant, Titanium Alloy Bezel, 1.5" AMOLED, 5ATM Water Resistant, 1Year Warranty (Driftstone Beige)
Noise
£ 99.90
free shipping
To the product (1 offer)
Smart Watch Answer/Make Call,Smart Watches for Women Men 1.85"HD Screen | Fitness watch with SpO2 Heart Rate Sleep Monitor Step Counter IP68 Waterproof 100+ Sports Mode for Android iOS (2 Bands)
RUIMEN
£ 35.06
free shipping
To the product (1 offer)
10% off
KOSPET TANK T3 Ultra GPS Smart Watch for Men, Rugged Stainless Steel Body
KOSPET
£ 89.99
free shipping
To the product (1 offer)
TRAUSI
TRAUSI
£ 99.99
free shipping
To the product (1 offer)
Garmin Venu 3, 45mm GPS smartwatch, AMOLED touchscreen, all-day advanced health & fitness features, voice functionality, music storage, wellness smartwatch with up to 14 days battery life, Black
Garmin
£ 268.99
free shipping
To the product (7 offers)
Which.One Highlight
Blackview Military Smart Watch for Men (Answer/Make Calls), 1.45" Fitness Tracker with 100-Day Battery/Flashlight/Compass/Heart Rate/SpO2/Sleep, 150+ Sports IP68 Waterproof Smartwatch for iOS Android
![Smart Watch for Men Women, Answer/Make Calls, Alexa Built-in, [1.8 HD Screen] Smart Watches for iPhone/Samsung/Android, Fitness Watch with Heart Rate Sleep SpO2 Monitor,IP68 Waterproof, 100+ Sports](https://cdn.which.one/productimages/6/D/9/B0CRHD89D6.jpg)
