The iPhone 15 Pro Max comes in four regional variants with different model numbers and supported 5G bands. Knowing which variant you have is important for network compatibility:
- A2849 (United States): Supports mmWave 5G and Sub-6 GHz. Uses physical eSIM only (no physical SIM tray). Compatible with AT&T, T-Mobile, Verizon.
- A3101 (Canada, Europe, Asia Pacific): Sub-6 GHz 5G only. Uses dual physical nano-SIM + eSIM. Compatible with most global carriers.
- A3102 (China mainland): Sub-6 GHz 5G. Uses dual physical nano-SIM (no eSIM). Specific bands for Chinese carriers.
- A3103 (Japan): Sub-6 GHz 5G. Includes FeliCa for Suica/Pasmo transit card support. Compatible with Japanese carriers.
When buying a used iPhone 15 Pro Max internationally, check the model number to ensure it supports the 5G and LTE bands used by your local carrier. A gray-market import may lack support for certain bands, resulting in poor signal or no service.