Large Screen Smartphone: The unlocked phone adopts a 6.1in ultra high definition screen and an IPS high definition screen. Not only does it bring a wider visual experience, but it also has extraordinary vivid colors and amazing clarity, allowing you to explore every detail to maximize your viewing experience..4000mAh Large Battery: The smartphones are equipped with an above average 4000mAh battery, which lasts longer than you expect, 6‑10 hours of talking, 8‑15 hours listening to music, 3‑5 hours playing games, and more. Smart and thoughtful AI battery management can reduce excessive cache to save more power, thus extending standby time..Support System: Dual SIM unlock phone is equipped with the latest for Android 11 system, MTK6737 and up to 2.0GHz, using 12nm processor. The architecture runs multiple applications with enough fluidity and responsiveness to meet your productivity and entertainment needs..High Pixels: 16MP rear camera and 8MP front camera, you can further edit your photos with filters, or other techniques, and face unlocking your phone only takes a second. Three in one navigation system, GPS, GLONASS, Beidou navigation, positioning is faster..4G GSM Network Phone: This phone i14pro max provides 4G network, which can be connected with GSM network operators such as for T Mobile, for Verizon, for American Telephone and Telegraph Company, etc. i14Pro max always strives to provide reasonable mobile phones to our esteemed customers. (This paragraph of text is only applicable to the US, for other countries, please refer to the following network frequency band text).