A:AnswerStraight Talk purchases the rights to run on all 4 major US carrier networks. The Samsung S10e is unlocked so it would work with at least the GSM carriers (T Mobile and AT&T). You'll might need to contact Straight Talk for a new Sim card if your Straight Talk plan is on Sprint or legacy Verizon (CDMA). The link below is directly from Straight Talk that talks more about it.
https://get.straighttalk.com/keep-your-own-phone/
The Galaxy S10E does work with wireless charging as I own a few in my home and car.
A:AnswerHello Gummybear48, thanks for asking! This phone comes with a one year manufacturer's warranty. Please follow this link (https://www.samsung.com/us/support/owners/product/galaxy-s10e-unlocked) to learn more about the warranty. ^Elizabeth
A:AnswerHey there, thanks for asking! Please follow this link (https://www.samsung.com/us/mobile/phones/unlocked-by-samsung/) to learn more about Unlocked by Samsung. ^Elizabeth