How to distinguish Launch X431 Diagun IV from Launch X431 V 8.0 inch

Launch X431 V8.0 inch tablet and new Diagun IV, better OBD diagnostic scan tool to choose?
Check the detail table comparison below：
Launch X431 Diagun IV vs. Launch X431 V 8.0 inch

In conclusion:
The main difference between X431 V and Diagun IV lies in:
1. Lanch X431 V supports many more vehicle brands, such as Indian (Mahindra, TATA), Australian Ford, Holden, Malaysian Porton, Perodua, Brazilian Fiat, GM, etc. which Diagun IV scanner does not support.
2. X431 V comes with much more language than diagun.
3. X-431 V 8 inch supports special functions such as gait learning, Immo key programming, Diagun IV is not supported.