Flylinktech&reg; New fashion 1.4inch UNLOCKED Watch Cell Phone Support Camera Touch Screen SMS/MMS mp3 Alarm clock N388 watch work with SIM card-black It's a Watch phone need work with SIM card (package not include sim card ). Smart watch cellphone support SIM card.1.4 inch TFT, touchscreen display, 260K colors. Messaging 200 SMS, MMS. Blutooth. Support MP3, WAV, WMA, AMR, AAC, AAC, support MP3 background play, equalizer. Support multi-languages. Unlocked cell phones are compatible with GSM carriers like AT&T and T-Mobile as well as with GSM SIM cards (e.g. H20, Straight Talk, and select prepaid carriers). Unlocked cell phones will not work with CDMA Carriers like Sprint, Verizon, Boost or Virgin.