Yup, the best way is identify by the model number & it not changeable.

for easier reference, below is the list of model number for New Ipad malaysia

Models Code

New iPad
iPad WiFi 16GB Black MC705ZP/A
iPad WiFi 32GB Black MC706ZP/A
iPad WiFi 64GB Black MC707ZP/A
iPad WiFi 16GB White MD328ZP/A
iPad WiFi 32GB White MD329ZP/A
iPad WiFi 64GB White MD330ZP/A
IPad Wi-Fi + 4G 16GB Black MD366ZP/A
IPad Wi-Fi + 4G 32GB Black MD367ZP/A
IPad Wi-Fi + 4G 64GB Black MD368ZP/A
IPad Wi-Fi + 4G 16GB White MD369ZP/A
IPad Wi-Fi + 4G 32GB White MD370ZP/A
IPad Wi-Fi + 4G 64GB White MD371ZP/A