Samsung Galaxy S21 Ultra 5G SM-G998U – 128GB – Black – Fully Unlocked – Good. Scratching On The Screen Which Can Be Seen When The Screen Is On Along With Dents And Or Scratches On The Body. Premium Aftermarket Charger And Cable Are Included. Retail Packaging NOT Included. Carrier Compatibility (Refer to listing Title). Fully/Factory Unlocked – This means the device will work with All Carriers in the US and internationally. GSM Unlocked – This means the device will work with all GSM Carriers and All International carriers. T-Mobile and AT&T are GSM Networks and will work. Verizon and Sprint will NOT work. To find out if you carrier is a GSM Carrier, search “Is (Insert Carrier) GSM” on the internet. T-Mobile – This means the device will only work with T-Mobile and Metro. AT&T – This means the device will only work with AT&T. Sprint – This means the device will only work with Sprint. Install your network SIM card in the device. Orders do not include SIM cards because they carry information specific to your plan and allow your device to connect with your network. If you do not already have a SIM card or your current one is not working, call your network for activation assistance. 30 Point Inspection Test.