Compare phones
| Global Score | |
| 60.4 | 66.3 |
| Basic Information | |
| Acer | Xiaomi |
| Android 5.1 | Android 5.0 |
| 2015-09-02 | 2015-04-23 |
| 6.15 x 3.05 x 0.35 inches | 5.44 x 2.74 x 0.31 inches |
| 5.82 ounces | 4.59 ounces |
| Black and Gray | Black, Blue, Pink, White and Yellow |
| -- | Plastic |
| -- | Scratch-Resistant Glass |
| $ 249.00 | $ 155.00 |
| Display / Screen | |
| 5.5 inches | 5 inches |
| 720 x 1280 pixels (HD) | 1080 x 1920 pixels (Full HD) |
| IPS LCD | IPS LCD |
| 267 pixels per inch | 441 pixels per inch |
| Capacitive, Multi-touch | Capacitive, Multi-touch |
| 7.9 | 9 |
| Performance | |
| MediaTek MT6753 chipset | Qualcomm Snapdragon 615 8939 chipset |
| ARM Cortex-A53, 64-bit (Single-Core 1300 MHz) processor | ARM Cortex-A53, 64-bit (Single-Core 1700 MHz) processor |
| 3 GB RAM | 2 GB (800 MHz) RAM |
| Mali-T720 MP3 GPU | Adreno 405 GPU |
| 7.83 | 8.1 |
| Storage | |
| 32 GB internal memory | 32 GB internal memory |
| microSD, microSDHC external memory slot | No SD card slot |
| 5.8 | 5.8 |
| Camera | |
| 8.00 MP + 8.00 MP | 13.00 MP + 5.00 MP |
| -- | f/2.00 aperture |
| 1920 x 1080 (Full HD) video resolution | -- |
| 6.6 | 7.92 |
| Networks | |
| Wi-Fi | Wi-Fi |
| LTE (4G), HSPA, HSUPA, EDGE and GPRS | LTE (4G) and GSM |
| -- | Micro SIM, Dual SIM |
| 5.9 | 4.9 |
| Battery Life | |
| 4000mAh Battery | 3120mAh Li - Polymer Battery |
| Removable Battery | Removable Battery |
| 5.92 | 5.12 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth 4.1 |
| GPS | GPS |
| Accelerometer, Compass, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
Xiaomi Mi 4i has a global score of 66.3, which is slightly better than the Acer Liquid Z630S's overall score of 60.4. Xiaomi Mi 4i's body is much lighter and somewhat thinner than the Acer Liquid Z630S, even when both were released only a couple months apart. These phones use Android OS (Operating System), but Xiaomi Mi 4i has older 5.0 version while Acer Liquid Z630S has Android 5.1.
Xiaomi Mi 4i counts with just a little better performance than Acer Liquid Z630S, although it has a smaller amount of RAM memory, they both have a Single-Core processor. The Xiaomi Mi 4i counts with a more vivid screen than Acer Liquid Z630S, because although it has a little smaller screen, it also counts with a lot more pixels per display inch and a way better 1920 x 1080 resolution.
Acer Liquid Z630S and Xiaomi Mi 4i have similar storage capacity to install games and applications, and although the Xiaomi Mi 4i has no slot for SD memory cards, they both have exactly the same 32 GB internal storage capacity. The Xiaomi Mi 4i takes much clearer photographs and videos than Acer Liquid Z630S, because it has a back facing camera with a much higher 13 megapixels resolution.
The Acer Liquid Z630S counts with superior battery lifetime than Xiaomi Mi 4i, because it has a 28 percent bigger battery capacity.
Even being the best phone of the ones we compare here, the Xiaomi Mi 4i is also a lot cheaper.
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