Ask HN: Why do Apple and Google watches have such bad battery life?
Every time Apple or Google introduces a new smartwatch, I'm always hopeful that it will have 5+ days of battery life. Since they never do, I assumed that it's basically just not possible (without sacrificing size, a la Garmin).
But when I looked into replacements for my aging Pebble, I found out that various Chinese companies offer smartwatches that have great screens, svelte profiles, and much better battery life. Huawei, Xiaomi, and Amazfit all have watches that seem to have far superior battery life than Apple/Google. Why is this?
For example, I'm currently trying the Amazfit GTR 4, which is providing 8-9 days of battery life in real-world usage. The watch isn't bulky and the screen seems as good as any Apple/Google watch I've seen.
I know Apple and Google watches offer more functionality, but this doesn't explain why the devices would chew through 2x-3x as much battery as an Amazfit when in standby mode.
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Then at some point Apple, in their quest to Find My Airpods, gimped this handy-dandy "Wi-Fi/BT off" action into "Turn Wi-Fi off (Limited Time Edition)". Same for BT, and I believe both Radios stay connected to existing devices. Which is very useful!!! I love being in Bluetooth "Connected" state without "Advertising New Connections"!
More Radio = Less Battery. I only recently discovered how to make a "Radios On"/ "Radios Off" button on my Home Screen, that turn WiFi/Bluetooth ON/OFF (Cell Data Off), since Apple disabled the Quick-Settings "Off" functionalities.
At least "Off" is "OFF" for Cell Data, so one brave sonuvabitch over at Apple is, thankfully, staring down the barrel of the "Botnet" gun and standing his ground for Sanity and Reason.
Regardless, I don't give the Amazfit (Zepp) app access to my location, and the watch itself doesn't have wifi connectivity. I suppose they can see my IP address when the app phones home, but I don't really care that the company knows my approximate location.
GPS uses very little battery.
This sounds amazing. It looks like the gt3 pro isn't available in the US, but the gt3 and gt2 pro both are. AFAICT, the pro models have sapphire screens, which would be great, but are also more expensive. Any tips on whether to hold out for a gt3 pro, or to get the gt3 or gt2 pro for now?
I'm in Canada, and the few vendors that sell huawei watches regularly discount to ~180 USD. I got my gt2 pro with points from our local pharmacist for slightly less than that. It was mainly spur of moment purchase for the oxygen monitor for covid, otherwise I would have been satisfied sticking with miband. Personally not into big watches, but got plenty of compliments. Matter of taste, but I would not spend 300+ USD for a smart watch yet, still not sure how battery life will play out.
Other tip I have since you focused on music controls is you can spend $20 to get a bluetooth car control remote with physical buttons to control media easily during winter with gloves on and wear whatever watch you want. I use to keep one in my breast pocket and can control my media through feel alone. It's stupid but it works.
Do you have any concerns about location data or other data being sent off to China? I had thought it would be enough to forbid the mobile app from having my exact GPS location, but I later realized the watch has GPS and can report that to the app, which can then send it anywhere. I don't know how carefully Apple looks after private data that is collected by a peripheral device.