The Amazon Fire HD 8 Kids at $140 provides a complete kid-oriented package with case and subscription while the Nokia T21 at $239 offers a larger 10.4-inch 1200x2000 display and 4GB RAM. The Fire HD 8 Kids released in 2024 versus the Nokia T21 from 2022-09. The Fire HD 8 Kids wins for families seeking child protection features at lower cost.