4G Camera S230 works with 5G SIM cards, but only supports a 4G signal. EIOTCLUB prepaid 4G LTE cellular SIM card is included. It comes with no contract and offers a 100MB data free trial for 7 days. Additional data needs be purchased. AT&T tablet and hotspot plans are available for prepaid data-only SIM cards. We recommend the prepaid AT&T 35 RTR DATA/6221A plan. Supported 4G bands: B2/B4/B5/B12/B13/B14/B66/B71; Supported 3G bands: B2/B4 SIM Card Size: Nano-SIM Card (4FF) 0.48×0.35×0.026 mm