The ultra-thin phone wars just got a new player. Motorola is launching the X70 Air in China on October 31st, a sub-6mm smartphone that somehow packs a massive 4,800mAh battery - significantly larger than competing devices from Apple and Samsung. The device is expected to launch in Europe as the Edge 70 in early November, bringing premium thinness at a more accessible price point.
Motorola just threw down the gauntlet in the ultra-thin smartphone race. The company's X70 Air, launching in China this month, manages to squeeze a surprisingly hefty 4,800mAh battery into a frame that's less than 6mm thick - putting it directly in competition with Apple's 5.6mm iPhone Air and Samsung's 5.8mm Galaxy S25 Edge.
But here's where things get interesting. While those premium devices made significant battery sacrifices for their svelte profiles, Motorola seems to have cracked the engineering puzzle differently. The X70 Air's battery capacity dwarfs both competitors, which could be the deciding factor for users torn between form and function.
According to product listings on Lenovo's Chinese site, the X70 Air weighs just 159g despite its generous battery. The 6.7-inch display keeps it in flagship territory size-wise, though the Snapdragon 7 Gen 4 chipset signals this isn't targeting the same ultra-premium market as its Apple and Samsung rivals.
That positioning could be Motorola's secret weapon. While Apple and Samsung push thin phones at flagship prices, Motorola is betting consumers will choose practical battery life over bleeding-edge performance - especially if the price is right.
The timing couldn't be better. Ultra-thin phones represent one of 2025's biggest design trends, but early adopters have complained about battery anxiety. The iPhone Air's compromised battery life and the Galaxy S25 Edge's similar trade-offs have left room for a device that doesn't force users to choose.
Motorola's engineering team has also addressed durability concerns with IP68 and IP69 water resistance ratings - features that competing ultra-thin devices sometimes sacrifice. The triple rear camera system includes at least one 50-megapixel sensor, suggesting the company isn't skimping on photography either.
