Most AT&T prepaid phones are carrier-locked to AT&T and are explicitly listed as not unlocked, so they will only work on AT&T's network unless a listing specifically states the device is unlocked.

Screen sizes range from compact flip/feature displays around 2.8 inches up to larger smartphone screens about 6.75 inches. Some models list enhanced display specs such as HD or HD+ resolution and higher refresh rates (for example, 90Hz).

Battery capacities in the listings include roughly 5000mAh, 4000mAh, 2200mAh, and 1,450mAh. Runtime examples vary: the largest batteries claim up to three days of use, while smaller batteries show examples such as about 8 hours of 4G LTE talk time.

Internal storage ranges from as low as 4GB up to 128GB, with many models listing 16GB or 32GB. Some phones note expandable storage via microSD (up to 512GB in a few listings). RAM values shown range roughly from 1.5GB up to 6GB; a few basic models do not list RAM.

Some models list water-repellent or water- and dust-resistance features, tougher or reinforced display glass, and scratch-resistant screens. A few descriptions also mention durable finishes.