iPhone 8 review

Trusted iOS feel and features at a cheap price

iPhone 8
Image credit: TechRadar

Why you can trust TechRadar We spend hours testing every product or service we review, so you can be sure you’re buying the best. Find out more about how we test.

  •  Will last a day – just – on a single charge with careful usage 
  •  Wireless charging is easy and convenient, but slower 
  • Fast charging is more useful, but requires extra purchases

Apple never reveals the official battery capacities of its phones, and all it has confirmed with regard to the iPhone 8 is that battery life is comparable to the iPhone 7.

Considering the upgraded internals when it comes to processing power, the news that battery life wasn’t being improved on the iPhone 8 was surprising, and disappointing.

However, now that the launch dust has settled, and devices have made their way into the world, it looks like there’s a good reason for Apple not commenting on the battery size in this case – apparently the iPhone 8 actually has a smaller battery than the iPhone 7.

iPhone 8 battery is 1,821mAh, according to teardowns of the smartphone. That's a fair amount smaller than the 1,960mAh power pack inside the iPhone 7.

The good news is that the battery performance of the iPhone 8 is comparable to that of the iPhone 7, even with the smaller battery. The bad news, however, is that the iPhone 7 didn’t exactly dazzle us in this respect.

There were a number of days when we had to top-up our iPhone 8 before we left the office to guarantee the phone lasting until bedtime.

Most days saw us take the iPhone 8 off charge at 7am, followed by around three hours of music streaming, a healthy dose of email, social media and messaging action, along with a handful of calls, an hour of gaming and some web browsing.

This generally saw the iPhone 8 battery reach its end around 9pm – and that included switching on power saving mode at 20% in an attempt to keep it going for longer. 

On lighter usage days, with little music streaming or gaming, the iPhone 8 could just about see out a 7am-11pm stretch if we engaged low power mode when we hit around 30%, but if you’re planning to be away from your regular charging spot the entire day we’d recommend taking a cable with you.

The one silver lining here is the inclusion, for the first time on an iPhone, of wireless charging, courtesy of the glass rear on the handset. Wireless charging currently doesn’t work through metal bodies, so a shift to a different material was needed in order to make this happen, and Apple chose super-strength glass.

The iPhone 8 supports the Qi wireless charging standard, which is the most commonly used, meaning there’s already a range of charging pads out there that are compatible. 

You may find a charging pad when you’re out and about, with the like of McDonalds and Starbucks starting to build them into counters and tables in their restaurants, while a number of car manufacturers are starting to include wireless charging areas in the cabin.

It’s certainly a convenient way to charge – just place the handset on the pad and it’ll start topping up –  but it won’t refuel as quickly as via a wired connection. The iPhone 8 also doesn’t come with a wireless charging pad included in the box, which means it’s an additional cost you’ll have to incur.

Apple offers two AirPower-supported charging pads, from Belkin and Mophie, which will set you back $59.95 / £54.95 / AU$99.95) each – not exactly cheap considering their function.

There are cheaper pads available if you shop around – just make sure they support Qi – although it’s worth noting that the Apple-approved pads offer a higher voltage (7.5w), which means they’ll likely top up your iPhone 8 faster than lower-powered rivals.

That said, if you’re in need of a quick top-up before heading out the door for the night you’ll want to using the Lightning cable which comes in the box, as it’ll give you more juice for your minutes.

John McCann
Former Global Managing Editor

TechRadar's former Global Managing Editor, John has been a technology journalist for more than a decade, and over the years has built up a vast knowledge of the tech industry. He’s interviewed CEOs from some of the world’s biggest tech firms, visited their HQs, and appeared on live TV and radio, including Sky News, BBC News, BBC World News, Al Jazeera, LBC, and BBC Radio 4.

Read more
Apple iPhone 16e REVIEW
I tested the iPhone 16e for a week and found it's a good phone that stretches the definition of 'budget'
Samsung Galaxy S25 showing the lock screen with two adorable collectible Android figurines on each side looking interested
I’ve used the Galaxy S25 for a week and it’s the fastest small phone I’ve tested, but I’d trade some speed for newer cameras
Apple iPhone 14 in yellow in front of TechRadar logo
The best cheap phones 2025: top budget smartphones in the US
Apple iPad Air 11-inch M3 (2025) Review
I tested the 11-inch iPad Air with M3 for five days, and it stretches the value even further with more power for the same price
OnePlus 13R front screen
OnePlus 13R review: a triple threat of battery, performance, and brilliance
The iPhone 16e on a pink and blue background
iPhone 16e launch as it happened – Apple's next-gen budget iPhone is official
Latest in iPhone
Samsung Galaxy Z Fold 6
New rumors predict a foldable iPhone will launch next year – and cost almost twice as much as the iPhone 16 Pro Max
iPad mini 2021
Huawei might have beaten Apple to the folding phone finish line by creating a foldable 'iPad mini'
Apple iPhone 16e on blue background with don't miss text overlay
Quick! One of the best iPhone 16e deals is back in stock – get a device for just $99 at Visible Wireless
Apple iPhone 16 Plus Review
The iPhone 17 Air could have an affordable price, and better battery life than you might have expected
Apple iPhone 16 Pro HANDS ON
Leaked iPhone 17 dummy units may have given us our best look yet at all four models
Three iPhone 16 handsets on show
Apple could launch an iPhone 17 Ultra this year – but we've heard these rumors before
Latest in Reviews
Assassin's Creed Shadows
I’ve played Assassin’s Creed Shadows for more than 40 hours and can’t stop collecting tea sets, painting birds, and assassinating evil schemers
Samsung SSD 9100 PRO review
The Samsung 9100 PRO SSD makes AI workloads faster—here’s what I found in my tests
A Samsung 9100 Pro sitting on top of its retail packaging
I spent two weeks with the Samsung 9100 Pro, and while it's a dream for professional users, gamers can do better
HP OfficeJet Pro 9012e main image
I tested the HP OfficeJet Pro 9012e - read why this is a cracking home printer
HP LaserJet Pro MFP 4302fdw main image
I tried the HP LaserJet Pro MFP 4302fdw - read why it disappoints
Epson EcoTank ET-2830 main image
I tried out the Epson EcoTank ET-2830 - see how this cheap inkjet holds up