Highlights
1. Faster, smarter and energy-efficient: With the latest octa-core processor running at 2.2 GHz and sporting powerful Cortex A17 and A7 cores, the MX4 has enough horsepower to tackle everyday use. An advanced PowerVR G600 GPU can throw around pixels fast enough for you to enjoy the latest in advanced mobile gaming, while boosting screen reaction time. Smart CorePilot technology instantly switches processes from core to core for a 87% improvement in performance and 30% increase in battery life. Faster, longer lasting and more powerful. Compared the Meizu MX3, the MX4 packs double the performance. 
2. 4G Network: Fast data connection means smooth HD video over data and uninterrupted VoIP video calls. Of course the MX4 is also backwards compatible with major 3G and 2G frequencies. Keep your friends and family up to date no matter where you are. 
3. High speed Wi-Fi: 802.11ac Wi-Fi protocol brings blistering internet speeds of 433 Mbps to the MX4. That is almost 3 times the speed of 802.11n. Dual band 2.4 GHz and 5 GHz Wi-Fi makes up the rest of the wireless package, delivering flawless Wi-Fi experience. 
4. 3100mAh super battery 
5. 20.7 mega-pixels SONY premium IMX220 Exmor RS sensor 
6. Flawless audio: An increase in volume and richer deeper bass are thanks to the use of a second generation NXP Smart PS audio processor. Audio from the Smart PA chip flows through an all new speaker design resulting in a 13% improvement in sound performance. The revolutionary new audio systems embedded algorithms improves audio output real-time. Music, audio and phone calls have never been clearer.