As camera phones, the iPhone 11 camera vs Samsung S20 are strong contenders. The cost of the S20 is somewhat justified when it comes to the camera due to its 12MP main sensor, a 64MP 3x telephoto zoom sensor and a 12MP ultra-wide sensor. This will give you ultra-sharp smartphone photography - if that’s what you’re after.
The ultra-wide lens on the iPhone 11 is one of its key selling points however and matches the quality of the Samsung quite well. Unfortunately, it does suffer a bit when you try to zoom on it. If zoom is important but you want to stick to the Apple ecosystem, then upgrading to the iPhone 11 Pro is your best bet for a good telephoto lens.
In terms of selfies, the iPhone 11 gets a point here due to its higher number of pixels. Whilst there’s not much of a difference - this could be a deciding factor for you. Coupled with its all-new portrait mode - which offers multiple lighting settings for your selfie - it’s a very strong choice.