10 bestLong Battery Life Smartwatchof December 2025

Garmin Instinct 2X Solar, Large Rugged GPS Smartwatch, Built-in Sports Apps and Health Monitoring, Solar Charging and Ultratough Design Features, Graphite

Amazfit T-Rex 3 Outdoor Rugged Military 48mm Smart Watch, Built in GPS, 27 Days Battery Life, Offline Maps, 2000 Nits Brightness, 10 ATM Water Resistance, AI Coach, for iOS & Android (Lava)

Fastrack Limitless FS2 Pro Smartwatch|1.96" Super AMOLED Arched Display with Functional Crown and Resolution of 410X502|Singlesync BT Calling|Nitrofast Charging|110+ Sports Modes|200+ Watchfaces,Teal

Samsung Galaxy Watch Ultra (47mm, LTE, Silver) with Upto 100h battery | 3nm Processor | Dual GPS | Quick Button/Siren | Sapphire Glass & Titanium | 10ATM & IP68 | BP & ECG Monitor |Energy Score & AGEs

OnePlus Watch 2 with Wear OS 4,Snapdragon W5 Chipset,Upto 100hrs battery life,1.43’’ AMOLED Display,Stainless Steel & Sapphire Crystal build,Dual Frequency GPS,5 ATM, IP68 & BT Calling (Radiant Steel)

Garmin Instinct® 3 50mm, AMOLED Display, Rugged Outdoor GPS Smartwatch, Metal-Reinforced Bezel, Built-in Flashlight, Up to 18 Days of Battery Life, Charcoal

Amazfit Active 2 Square, 2000 Nits Bright AMOLED Display, Built in GPS, 10Day Battery, for Android & iPhone, Accurate Readings, BT Call, Sleep Monitor, 5ATM Water Resistant, Black Leather

Amazfit Active 2 Premium 44mm Smart Watch, Sapphire Glass Display, Free Silicon Strap in Box, Built in GPS, 10day Battery, 5ATM, for iOS & Android, 2000 Nits Bright, 160+ Sports Mode, Black Leather

Samsung Galaxy Fit3 Light and Sleek Fitness Band, 13 Days Battery, 100+ Exercises and Sleep Tracking, Dark Gray (Black)