T-Mobile offers the Samsung Galaxy Core Prime 4G LTE Prepaid Smartphone
, model no. SM-G360TZWATMB, bundled with a T-Mobile $40 Refill Card
and a T-Mobile SIM Starter Kit
for $89.99. Redeem this $49.99 mail-in rebate
to cut the price to $40
. With free shipping
, that's $50 under our December mention and $72 under the lowest total price we could find for the phone and refill card elsewhere. It features a 1.2-GHz quad-core processor, 4.5" 800x480 touchscreen, 1GB RAM, 8GB internal memory, 5-megapixel camera, 2-megapixel front camera, 802.11n wireless, Bluetooth 4.1, microSD slot, and Android 5.1 (Lollipop). Rebate expires April 30.