I have the same concern. I have the Galaxy watch 4 (non-classic) LTE and I was wondering if there was any big difference in terms of battery drainage because even with airplane mode on I read the antennas still use some power so I went with Bluetooth only for the Galaxy watch 5 pro. Samsung's Galaxy Watch 6 starts at $300 (£289, AU$549) for the smaller 40mm size and $330 (£319, AU$599) for the larger 44mm size, $20 more than the initial base price for the Galaxy Watch 5. Got the Galaxy Watch 5 Pro instead and it lasts like 2 days same settings. Nowhere near the advertised 7 days. To be honest i might switch to garmin fenix 7 that lasts about 18 days and has solar charging which pushes it up to 173 days (no typo) with solar and power save mode on, has basically the same features. Most Samsung Galaxy Watch 6 coverage has focused on how it compares to the Watch 5 in terms of hardware, battery life, and so on. Most reviews (including my own) didn't touch on software much The 44mm Bluetooth and LTE variants are priced at $299 and $349, respectively. In terms of battery life, the Galaxy Watch 5 is an improvement over its predecessor, packing a larger 410mAh . Quite simply, the LTE version (which I have) will enable a working cellular and data connection on your watch without having the phone nearby. Useful when you go somewhere like on a hike n don't want to take your ph9ne with you but still need to be able to get phone calls. You will also have data connection so all your apps that need data will NFC, GPS, Bluetooth 5.3, Wi-Fi 802.11 a/b/g/n, LTE (optional) Durability: 5ATM + IP68 / MIL-STD-810H : Battery. The battery life of the Galaxy Watch 6 models with similar sizes remains 3. The Bluetooth Model Has a Slightly Longer Battery Life. The battery capacity of the Galaxy Watch 4 Bluetooth and LTE variants is the same. However, when LTE is enabled on the LTE model, the battery life is reduced compared to Bluetooth. Otherwise, the 44mm size may take up to 2 days, and the 40mm size can take slightly over a day. Samsung Heath: To conserve battery life, heart rate is set to 10 mins and Stress is manual only. Because of the crappy battery life, I've disabled Blood Oxygen during sleep. Activities to Detect: Walking/Running. Inactive time: 9 - 5 M-F. GPS is always off off during and for my 1 hour evening runs to conserve battery. The system supports Bluetooth 5.2, Wi-Fi 2.4GHz and 5GHz, and optional 4G LTE for connectivity. and I think that speaks more of the iPhone than the watch. Battery life . My Galaxy Watch5 was

galaxy watch 5 lte vs bluetooth battery life