Buy the Google Pixel.

Same price, longer software life, and a battery rating that actually holds up where the A57's doesn't.

What was compared

1. A battery rated for the whole day, not the spec sheet
The A57 ranks #109 in independent testing at just 6h11m screen-on despite its 5000mAh pack. Pixel 10a carries a near-identical 5100mAh cell but is rated for 30+ hours of real use. Bigger number, worse real day.
2. One more year before the updates stop
Google commits to 7 years of security and OS updates on the Pixel 10a. Samsung caps the A57 at 6. On a $600 phone you'll keep for years, that extra year is real protection and resale value, not a marketing number.
3. Scam calls get answered before they reach you
Call Screen on the Pixel 10a uses on-device AI to pick up, transcribe and filter suspicious calls live, a Google feature Galaxy AI on the A57 does not match. If spam calls annoy you, this is daily use, not a gimmick.
4. Better photos where you actually take them
Google's computational photography consistently wins low-light and indoor shots, the moments most people actually photograph. The A57's triple camera adds a lens, but a spare lens on a budget sensor doesn't beat processing in the shots that matter.
5. Yes, the A57's screen is bigger. It won't matter.
The A57's 6.7 inch AMOLED beats the Pixel's 6.3 inch panel on paper. Unless you're watching video one-handed for hours daily, that 0.4 inch sits unused while the Pixel wins on updates, battery and camera. If that's you, fine, but it isn't most buyers.