iPhone 12 vs iPhone 13: which used model should you buy?

The iPhone 12 and iPhone 13 share the same flat-edged design and screen size, so from the front they're hard to tell apart. On the used market the choice usually comes down to three things: battery life, cameras and price.

Battery life

This is the biggest everyday difference. The iPhone 13 has a noticeably larger battery and a more efficient chip, so it comfortably outlasts the 12 on a single charge. If all-day battery matters most, the 13 is the safer pick.

Performance

The 13 uses Apple's A15 chip versus the A14 in the 12. Both are still fast for everyday apps and will get software updates for years, but the A15 has a little more headroom.

Cameras

The 13 improves low-light photos and adds sensor-shift stabilisation, plus video features like Cinematic mode. The 12's cameras are still very capable in good light.

Storage and price

The iPhone 13 starts at 128GB, while the 12 started at 64GB — so check the storage on any unit. The 12 is usually cheaper used, which can make it the better value if battery life isn't your top priority.

The short answer

• Choose the iPhone 13 for the best battery life, cameras and longevity.
• Choose the iPhone 12 to save money if you're a lighter user or charge daily.

Whichever you choose, buy one that's battery-tested and warrantied.