Nexus 4 Xiaomi 2 Meizu mx BBK vivos9 which phone is good?

Mobile phone function:

Support frequency band 2g: GSM 850/900/1800/1900 MHz; 3G:WCDMA2 100

Network connection support: 3G network HSDPA 7.2 Mbps；; ; GPRS/2G network edge

Operating system: Android OS 4.0.4 ram: 1G rom: 4g CPU frequency: dual-core1g.

Optional colors: elegant white (other colors to be determined)

Size: 129.5X67X9.9mm (standard height) Weight: 134g (with battery)

Single screen: 4.5 inch capacitive touch screen, 4.5 inch display resolution: 960×540.

Battery: BK-B-50 Capacity: 2000 mAh.

Standby/talk time (depending on network quality)

Talk time: GSM≤670 minutes, WCDMA≤520 minutes.

Standby time: GSM≤500 hours, WCDMA≤470 hours.

MP3 playback time: external playback: ≤9 hours; Headphones: ≤30 hours.

Main camera: 800W pixel sub camera: 200W pixel TF card: maximum support 32G.

Built-in third-party software: social communication (QQ20 12, Sina Weibo, Renren, WeChat), life communication (public comment, Taobao software, where to travel, Tmall, Alipay), game communication (fishing up), movie communication (Youku, Qiyi Film and Television), reading communication (ViVa reading, Netease cloud reading), information.

Functions: electronic manual, dual-card dual standby (large and small cards), HS USB 2.0, media equipment, support for Wi-Fi/WAPI, GPS and AGPS, automatic screen locking, diversified unlocking styles, scene unlocking, pattern locking, time switch, scene desktop, online wallpaper download, Vivice voice assistant, SIM card locking, menu upgrade, account management, electronic compass, SMS encryption. SMS font size setting, Bluetooth (2. 1), gravity acceleration sensor, light sensing control, infrared proximity sensing application, security assistant, synchronization assistant, power saving mode (including power saving skill description), program management, traffic monitoring, incoming call photo, dual microphone noise reduction, theme change, holiday lock changer wallpaper, total recall, number attribution inquiry (e-mail, ST support)