Wait... Samsung M51 came with 7000mAh battery right? But M52 with 5000mAh only? Why such a downgrade?
Glass back to Plastic back is OK, at least plastic is more durable. FHD+ to HD+ is also expected in budget phones, reason may be Pandemic + Inflation. But why downgrade from 7Ah to 5Ah battery? At least M51 had one USP with that Jumbo battery.