Hardware and battery life; 4. Software, health and fitness tracking; 5. Alternatives, pros and cons, verdict ; It also opens the world of Wear OS apps to the Galaxy Watch, which up until now I was pissed when my last update dropped my battery life from 4 days down to 3. These new watches barely get a full 24 hours. How are you supposed to use all the feature like sleep tracking if you have to charge it every night. Where the new Galaxy Watch seems to fall short of the previous model is battery life. Unlike the 4-day stamina of the original Galaxy Watch, the Galaxy Watch 3’s 340 mAh battery is rated for 2 days. The 46mm version is priced at $379.99 for Bluetooth and $429.99 for LTE. Samsung Galaxy Watch 4 vs. Fitbit Sense: Design and display. Samsung Galaxy Watch 4 vs. Fitbit Sense: Battery life. Battery life: 40 hours: 40 hours: Processor: Exynos W920 The 44mm model costs $279.99 for Bluetooth and $329.99 for LTE. The Galaxy Watch 4 Classic starts at $349.99 for the 42mm Bluetooth With the new Galaxy Watch 4 on the market, the Apple Watch may finally have a worthy Android competitor that puts it to shame. Bluetooth 5.0, Wi-Fi, optional LTE: Battery life: 40 hours: 18 Terrible battery life on galaxy watch 4 upvotes Galaxy watch 4 -- 40 mm, LTE going strong upvotes Every version has bluetooth and every version will connect to your phone through bluetooth. So the difference is that the Wifi + LTE will be able and will use cellular data to call and connect to internet in the case you dont have a phone connected. You need an esim. lYNCe1H.