Yes, the iPhone SE 3rd generation (2022) can utilize 5G networks. Available frequencies vary depending on the model. The following 5G bands are supported on iPhone SE model A2595 (Canada, Mexico, US):

No, the iPhone SE 3rd generation (2022) does not support MagSafe accessories.

This means MagSafe chargers, cases, and external battery packs cannot be used with the iPhone SE. Apple introduced MagSafe on the iPhone 12. The feature makes it possible to attach accessories to the back of the iPhone via internal magnets.

iPhone SE (3rd generation)

The 2022 iPhone SE is powered by Apple's A15 Bionic chip also seen in the iPhone 13. This allows the iPhone SE to feature better camera capabilities and performance than its predecessor. The 3rd generation model is equipped with a CPU that's 1.8x faster than the iPhone 8 and a GPU that's 2.2x faster. It also has increased battery life and can support iOS 15.4 for an overall smoother experience.

iPhone SE (3rd Generation)

iPhone SE (3rd Generation)