Anecdotally, I've found that iOS handles small touch targets much better than Android. I had an HTC Raider, a Moto G, and a Moto X Play, and I felt very fat-fingered on all of them. Then I switched to an iPhone 6s and now an iPhone 12 Mini and with both of them I've had zero problems with small touch targets, even ones that are close to each other like with Nonograms.