Battery Life

For the battery life tests, we have a standard workload that the phone performs while connected over Wi-Fi, or Cellular data. The display is calibrated at 200 nits for consistent comparison data for the charts. The device is run under this standard load until it shuts down.

Windows Phone added a battery saver mode last year, so these tests were done twice. Once with battery saver disabled, and another with it enabled which stops all background events from being run.

Web Browsing Battery Life (WiFi)Web Browsing Battery Life (2G/3G)

The Lumia 630 contains an 1830 mAh battery, which is 3.7 V. This works out to a 6.77 Wh battery which is quite a bit lower than the 7.9 Wh of the Moto G. People often wonder why manufacturers have moved to sealed batteries and this is a great example of why. In the same size chassis, with the same screen size, Motorola has packed a much larger battery inside. Still, there are those that prefer to be able to swap batteries on the go, and you can do that on the 630.

Lumia 620 Battery (left) vs Lumia 630 Battery (right)

Battery life is actually pretty good, with the Wi-Fi test just squeaking over seven hours of battery life. It’s just far lower than the Moto G which has exceptional battery life. Seven hours of screen on time though is generally plenty for most people to get through a day, and my time with the phone I easily got well over a day’s worth of use out of the phone on each charge.

Cellular data time is a decent six hours, which once again is generally enough to get you through a day even when you don’t have access to Wi-Fi. With a battery that’s not very large, the phone does all right.

Battery Saver can change the situation somewhat. It disables most apps from being able to run in the background, so tasks such as email will require manual synchronization when Battery Saver is enabled. The behavior of apps can be controlled from within the Battery Saver usage screen, where you can pick and choose which apps can run with Battery Saver enabled. It can lead to some pretty large gains in battery life especially with the phone in standby.

You can enable Battery Saver in a couple of ways. First, you can just leave it on at the default, which will automatically enable battery saver when the charge drops to 10%. A second option, is to enable it from now until the next charge, which is a great idea if you know you’ll be away from the mains for a while, and the third option is to enable Battery Saver always, which it warns you will limit functionality.

Web Browsing Battery Life (WiFi) Battery Saver

With Battery Saver enabled, I was able to squeeze more than an additional two hours out of a charge. That’s two more hours of screen on time, so it’s a big bonus. It moves the Lumia 630 from good battery life to quite good, but with only 6.77 Wh of power, it still won’t break any records. The big bonus with Battery Saver is with standby time, since practically all idle functions are halted. As an example, I charged a Lumia 620 to full and then enabled Battery Saver and just left the device to its own for a couple of days. The results were pretty amazing, but this is with practically no screen-on time for the duration.

Next up we’ll look at the charging times.

Charging

Charge Time

The Lumia 630 comes with a 750 mA charger in the box, and with that charger you can go from 0-100% in just under three hours. It’s not spectacular, but since I’ve compared the phone so much with the Moto G, I have to applaud Nokia for still including the charger in the box since Motorola has deemed the charger to be optional. It’s true that many of us have several, but for many who would be after a low cost smartphone, it may be that this is their first and they might not have one.

One other note about the charging times – the device goes from 0-99% charge in only 2:10, with the last 1% taking 40 minutes. It’s not unheard of for phones to do this, so just take note that if you need to get a quick charge in, two hours will pretty much fill it.

Camera Wi-Fi, Cellular, GNSS, Speaker
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  • cashnmillions - Tuesday, July 22, 2014 - link

    I have the 635 after having an HTC DNA and then a Google Nexus 5. So far the phone has grown on me, there are definitely fewer features than some of those Android phones. Win Phone 8.1 takes a bit getting used to. It is simple though and runs pretty smooth. The thing I probably like the most is the size and feel of the phone when you hold it. I will probably switch back to android though in the next year and probably will get a compact or mini version of one of the bigger phones like the Xperia Z1 or S5.
  • Alexvrb - Tuesday, July 22, 2014 - link

    A lot of the mini versions are gimped in terms of specs. Sony is usually better about that than most. Nokia has some good small phones that are higher end than the 6xx series. There's also talk of a 1520 V (smaller version) that might be good those those looking for something compact. Personally I'd be more interested in the 1820.
  • kyuu - Tuesday, July 22, 2014 - link

    Thanks for the review, Brett. It's great to see real Windows Phone coverage return to Ars. I only wish there were some flagship phones to review. Newest one is the Lumia 930, and that's not even available in the US market.

    Oh how I wish they'd release a successor to the 1020. Hell, they could use the exact same camera module and it'd still be a winner. Just modernize the rest of the phone and address the 1020's chief shortcomings (white balance problems and lack of mSD).
  • Gunbuster - Tuesday, July 22, 2014 - link

    The really bizarre thing is they have done a ton of marketing for the 1020 in the past few weeks. It's like no one told them the phone has been out for over 6 months and is soon to be discontinued...
  • skiboysteve - Tuesday, July 22, 2014 - link

    return to ars?
  • kyuu - Wednesday, July 23, 2014 - link

    Yes...? Unless my memory is completely out of whack (which isn't a possibility I ever discount), Ars hasn't had any real reviews of Windows Phone hardware/software since the initial review of WP8 and the HTC 8X. Note that pipeline articles don't fall under my definition of "real reviews".
  • noblemo - Wednesday, July 23, 2014 - link

    This is AnandTech.
  • hahmed330 - Tuesday, July 22, 2014 - link

    This is a downgrade from nearly every aspect... Rather cough up 20$ extra buy a Moto G and not be this cheap... Only thing good I can say is well great review
  • VengenceIsMine - Tuesday, July 22, 2014 - link

    In spite of the #, this isn't really a sequel to the 620, significantly lower price point. If this thing was at $150 or better $129 then it's a solid phone for the $ but it's currently overpriced. I expect it to drop soon much like the 520 did, that thing came out at $129 but was under $99 within 3 months of release practically everywhere & often below that.

    512mb is definitely the weak point in this phone, kind of unforgivable and short sighted, hopefully now that MS has control they will but a stop to the 512 mb madness. Screen res is ok and performance is actually pretty good for the price point and Lumias are generally pretty well built vs competition in these cheaper market segments.

    Microsoft has to wake up and stop paying $ for Qualcomm in this market segment & get onboard with a cheaper SOC like MediaTek and spend the $ on ambient light sensor and extra RAM.
  • jimjamjamie - Tuesday, July 22, 2014 - link

    I thought the 630 was a pretty conservative configuration for Nokisoft. If you compare it to the Nokia X2, the X2 beats it soundly and for a better price. Funnily enough it's only for select markets.

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