Apple Watch battery

Now that Apple has shared full details concerning its highly-anticipated Watch devices, which goes on sale in the United Stated and eight major international markets on April 24starting at $349, the Cupertino company has posted additional details regarding its “all-day”18-hour battery.

Of course, the advertised battery life depends on how you use your Watch. If you’re just going to do things like checking the time, receiving notifications, using apps and doing a 30-minute workout, the battery should last up to eighteen hours before needing to be charged again overnight.

Here is what Apple had to say about the Watch’s battery performance.

Before we dive into it, it’s important to note that the battery claims above were derived from a pre-production 38mm Watch. Even more importantly, as Apple put it, “a 42mm Apple Watch typically experiences longer battery life.”

Find a summary of Watch usage scenarios and their expected impact on the device’s battery life included below:

18-hour battery

The “all-day battery life”, as Apple puts it, assumes you’ll be checking the time 90 times per day, checking out up to 90 notifications, spending 45 minutes in apps and doing a 30-minute workout with music playback from the Watch via Bluetooth.

In addition to the aforementioned combined activities that fall within the target 18-hour battery life, Apple has also broken down the device’s energy efficiency around single user activities, including the following:

Talk time: up to three hours

Because the Watch pairs with an iPhone in your pocket, it lets you receive phone calls and make outgoing calls from your wrist and Apple is claiming three hours of talk time.

Audio playback: up to 6.5 hours

Streaming music from an iPhone to your Watch via Bluetooth will get you up to 6.5 hour of audio playback.

Workout: up to 7 hours

If you’re a fitness nut like me, you’ll be using the Watch to measure your movement, activity and workouts. The Workout alone will deplete the battery after seven hours of non-stop use. Of course, no one spends seven hours running or working out so you’ll still have plenty of charge left if you spend about two hours in the gym.

Watch test: up to 48 hours

Apple boasted about the Watch’s ability to tell tie within 50 milliseconds of the Universal Time Standard. Assuming you’ll be using your Watch exclusively for timekeeping, Apple says you’ll be able to do five time checks per hour lasting four seconds each over the course of 48 hours before the battery dies.

Power Reserve mode: up to 72 hours

The Apple Watch has what’s called a Power Reserve mode which disables all functionality but timekeeping whenever your battery “gets too low,” allowing you to continue to see the time for up to 72 hours.

Charge time

Charging the Watch up to 80 percent capacity takes about 1.5 hours using the included MagSafe inductive charger, or 2.5 hours in total to charge the battery from zero to 100 percent. “Charge time varies with environmental factors; actual results will vary,” cautions the firm.

So there you go, this is what you can expect from the Apple Watch in terms of energy efficiency and battery performance.

Apple Watch inductive charging

As a rule of thumb, heavy use of the device will consume more juice so you may not be necessarily able to get through the day on a single charge.

For those wondering, the company conducted battery testing in March 2015, using preproduction 38mm Apple Watch units and software paired with an iPhone using preproduction software.

Again, a bigger 42mm device provides longer battery life.

So what do you think about the Watch’s battery performance?

Source: Apple

  • iBanks

    Better than expected but people are still going to cry about it.

    • CsSxPlay3r

      Well yeah when people like me are used to their Pebble watch lasting a good week, one day is going to hurt. I depend on my Pebble to wake me up in the morning for work. Whereas now with the apple watch, Its going to be sitting on the charger, not on my wrist since it needs to be charged almost daily.

      • iBanks

        Then stick to your Pebble. Won’t be as sexy or interactive though. My Pebble will surely be given away once I get my Apple Watch.

      • CsSxPlay3r

        Oh dont get me wrong, Im still getting the Apple watch without a doubt. I just wish that it had a little bit better battery life. But, I think if certain unneeded apps are turned off and for what Id actually be using it for, Im sure I could get 2 days of battery life out of it.

      • Mike

        are you seriously going to buy this? why not buy a Movado?

    • s0me

      And you feel butthurt because ppl are going to cry about it… LoL

  • Merman123

    It all seems reasonable to me. I’m still trying to get past the band pricing though….

    • CsSxPlay3r

      $449 for the stainless steel band…and thats the one that looks the best in my eyes. Oh well…hopefully a 3rd party makes better affordable bands.

      • George

        How dare u guys not support apple, bad isheep!

    • iBanks

      There will surely be 3rd party bands at lesser pricing for sure.

      • cajhne

        Proprietary clip = no 3rd party bands. Apple did this intentionally. They want you to be stuck buying theirs.

      • iBanks

        You were saying? http://9to5mac. com/2015/04/19/third-party-bands-replacement-straps-battery-packs-apple-watch/

      • cajhne

        Oh, I’m not saying people won’t do it (I fully support those that do, and give you options Apple wants to prevent you from getting). I’m just wondering if Apple is going to be as litigious about their Apple watch connector as they have been about their lightning charge cables. If they are, expect many of these to vanish.

  • Fanboy 

    Okay this kind of annoyed me, these tests were done on “a preproduction 38mm Watch” so the “42mm will experience better battery life”.

    Soooo Apple couldn’t test out battery life on a 42mm this entire time to give us battery life on those?? I guess.

  • Jeff Ramirez

    Typo: “Before we die into it…”

    • Tony Trenkle Jr.

      Ironically I think thats correct. lol

  • Tony Trenkle Jr.

    Seems like its better then was originally thought.

    • CollegiateLad


  • Snailpo

    Before we die into it. But I don’t want to die 🙁

  • M L

    Anyone know if you can purchase the sports model and then buy the stainless steel bands later and add them on or does each model have a unique connection method?

    • Snailpo

      Yes you can from what I can see

  • Jamessmooth

    Sounds good to me. I’m definitely getting the 42mm one after reading this.

  • @dongiuj

    If true then I’m impressed as it should be sufficient for most people to get through the day without checking every 5 minutes to see if a wall hugging session is needed. But battery life is never what a company says it is so we’ll just have to see what a majority of the general public have to say on it. Still, better figures from a company than what I thought was going to be possible to do for that period of time. Also the power saving mode is a good and needed feature for sure.
    Still won’t be getting one though.

  • Andres

    Decided I’m not getting the 15 MacBook Pro since Apple didn’t update it today. I’ll settle for the middle tier 13 inch Pro. And I’ll have $500 left over to buy a stainless Watch w/black sport band with the money I would have spent on the 15 inch Pro

  • ProSzakal Aszakal

    Many people say- yea battery sucks but the watch is so cool, the OS, how you operate it and how is looking, but the true is the battery is suck, you can’t measure your activity all the time because watch will be on power cable on the night, I use my pebble day and night to wake up silent, but who see the problem of battery when the watch is so cool 😉 but this is not cool for me, battery is important, I don’t want to use two devices to measure my 24 hour activity, I wait for next gen.

    • CollegiateLad

      To many people, the pebble OS, its screen, the look of it and the level of integration you’d only find from Apple all suck. It has a long battery life but who cares if you think the entire thing stinks. I never even considered buying one. It’s true that the Apple Watch battery won’t last 7 days but it will last me 18 hours(which for me is more than enough).

      It’s all about opinion. I’d rather charge nightly than to strap that Pebble thing on my wrist. Sorry.

      • ProSzakal Aszakal

        some people don’t want to show only for another, hey I have apple watch!, for some people important is to forget abaut to charge the watch and some people want to track activity every day and night, I understand that you just playing and having fun with device like this, for me better choice is to buy new pebble at this moment, even when I’m apple fan, I just know what I want from my watch.

      • CollegiateLad

        I don’t want to buy it to show off. I want to buy it cause i like it. The pebble is for you and the apple watch is for me. There’s nothing wrong with that. I’m happy the pebble meets your needs. I’m not buy the apple watch cause I need it, I’m buying it to play with.

      • ProSzakal Aszakal

        Yes exactly that why I going to buy Apple watch for my son and daughter, to play with…

  • gittlopctbi

    Not disparaging them, but I am just shaking my head in amused amazement that diehard Apple fans are the only people on the planet who would be rejoicing that their watch will be getting only 18 hours of battery life.

    • Kevin Osborne

      LoL! I love my iPhone, but am by no means a fanboy, and I agree 100%. 18 hours isn’t impressive. If you have a social life, you’re screwed. Friday I’ll be getting up at 7AM, heading into work until 5, then driving an hour away to go out with a bunch of friends. I won’t be home until 2 or 3AM, so I would either have to not use my watch all day at work, and bring the charger with me in order to have it fully charged when I leave the office at 5, or the watch will be dead before I even make it home again. For a phone, it’s easy enough to plug it in while I’m at the office, in the car, etc., but who wants to keep unsnapping their watch to connect it at the office, in the car, etc.? Their 18 hour specs call for less than 5 notifications per hour, (sorry, but I get far more than one notification every 12 minutes), and using less than 3 minutes of apps on the watch per hour during that time. If you have to avoid using watch apps for more than 45 minutes in the entire day to last your 18 hours, what’s the point of spending $350 MINIMUM on one? I suppose for some people that’s all fine, but I would use twice those notifications, apps, etc. and so mine would die in what, 9 hours? And I’m almost never back home again within 9 hours. Usually have plans with friends after work, and this thing would constantly be dying on me. Like I said, I love my iPhones, and have had one since the first one launched, but to me, the Apple Watch is a huge disappointment, and I’m not at all impressed.

      • gittlopctbi

        Totally. I mean, that’s a TON of money for so little life. It looks like it could be a cool thing, but having to “wind it up” (charge it) every 3/4 of a day (best scenario) is not realistic for me. I can’t even stand it that I don’t get a full day charge from my iPhone 5. I should be able to use a device and not worry about it. And a watch? Should not have to be a (more than) daily worry.

      • Kevin Osborne

        Yes! Thing is, if someone doesn’t expect to use it more than the estimate times they’re giving, (5 notifications per hour, less than 2 minutes app use per hour), what’s the point of spending a MINIMUM of $350 on it?!? If I’m gonna spend $350 on something, I should be able to actively use it throughout my actual day. Wearing it alone doesn’t count as using it; app use, notification checking, etc. does, and the time limitations in order to even make it the 18 hours just kills me. Definitely #TeamPebble for me.

  • WaterTrooper

    I thought there were 24 hours in a day. I must be off by 6 hours.

  • frozenbee

    lol, those prices are getting out of hand….i love apple, but i hope they will fail on this one, because its getting ridiculous