Side-by-side technical data
ZTE X990 vs ZTE nubia A57
Compare up to four phones using typed, normalized technical data. Measurements stay numeric, capabilities stay boolean, and options stay comparable.
The verdict
Neither runs away with it: each wins something.
Which one is for you?
ZTE X990, if you care about…
- Weight
- 90 g
- against 193 g
ZTE nubia A57, if you care about…
- Display Technology
- IPS LCD
- against TFT LCD
- Maximum Storage Capacity
- 128 GB
- against 5 MB
- Display Pixel Density
- 256 ppi
- against 160 ppi
- SIM Configurations
- Dual Nano-SIM, Dual SIM
- against Mini-SIM
Specification comparison
Battery
| Specification | X990 | nubia A57 |
|---|---|---|
| Battery Efficiency Rating | — | — |
| Battery Capacity | — | 5,000 mAh |
| Battery Type | Li-Ion | — |
| Fast Charge Power | — | 22.5 W |
| Battery Features | — | Bypass Charging, Battery Level Indicator, Charger Included, Fast Charging, Rechargeable |
| Battery Endurance | — | — |
| Wireless charging power | — | — |
| Charge cycles | — | — |
| Talk time | 8 h | — |
| Standby time | 480 h | — |
| Music playback time | — | — |
Design
| Specification | X990 | nubia A57 |
|---|---|---|
| Body Colors | White | Silver, Black, Orange |
| Body Thickness | 12 mm | 7.95 mm Best value |
| Body Width | 61 mm | 70.4 mm |
| Body Height | 107 mm | 160.1 mm |
| Weight | 90 g Best value | 193 g |
| Usable Surface | 29.7 % | 98.8 % Best value |
| Body Materials | — | Glass, Plastic |
| Resistance Features | — | IP64 |
| Waterproof Depth | — | — |
| Drop Resistance Class | — | — |
| Repairability Class | — | — |
| Foldable | No | No |
| Rugged Build | No | No |
| Drop Test Count | — | — |
| Unfolded thickness | — | — |
| QWERTY keyboard | Yes | — |
Performance
| Specification | X990 | nubia A57 |
|---|---|---|
| Processor Model | — | Unisoc T7250 |
| Processor Process Size | — | 12 nm |
| Graphics GPU | — | Mali-G57 MP1 |
| Storage Type | — | eMMC 5.1 |
| Maximum CPU Clock | — | 1.8 GHz |
| Maximum Storage Capacity | 5 MB | 128 GB Best value |
| AnTuTu Score | — | — |
| Geekbench 6 Single-Core | — | 437 |
| Geekbench 6 Multi-Core | — | 1,461 |
| CPU Description | — | Octa-core CPU with 2 Cortex-A75 cores at 1.8 GHz and 6 Cortex-A55 cores at 1.6 GHz |
| Processor Type | — | Octa-Core |
| 64-Bit Processor | — | Yes |
| RAM Capacity | — | 4 GB |
| RAM Type | — | DDR4 |
| Expandable Storage | Yes | Yes |
| AnTuTu version | — | — |
| 3DMark Wild Life Extreme | — | — |
| Maximum memory card | — | — |
Sensors
| Specification | X990 | nubia A57 |
|---|---|---|
| Fingerprint Sensor Placement | — | Side |
Display
| Specification | X990 | nubia A57 |
|---|---|---|
| Display Aspect Ratio | 4:3 | 19.5:9 |
| Peak Display Brightness | — | 740 nits |
| Display Technology | TFT LCD | IPS LCD Best value |
| Display Diagonal | 2.5″ | 6.75″ Best value |
| Display Horizontal Resolution | 320 px | 720 px Best value |
| Display Vertical Resolution | 240 px | 1,570 px Best value |
| Display Pixel Density | 160 ppi | 256 ppi Best value |
| Display Refresh Rate | — | 120 Hz |
| Touch Sampling Rate | — | — |
| Display Contrast Ratio | — | — |
| Display Features | Touchscreen, Resistive Touchscreen | Capacitive Touch |
| Integrated Projector | No | No |
| Projector Brightness | — | — |
| Projector Horizontal Resolution | — | — |
| Projector Vertical Resolution | — | — |
| Cover display diagonal | — | — |
| Cover display refresh rate | — | — |
| Cover display peak brightness | — | — |
| Display colors | 256K colors | — |
Sensor
| Specification | X990 | nubia A57 |
|---|---|---|
| Sensor Features | — | Fingerprint Sensor, Accelerometer, Proximity Sensor, Compass |
Software
| Specification | X990 | nubia A57 |
|---|---|---|
| Operating System | Windows Mobile 6.5 | Android 16 |
| OS Family | Windows Mobile | Android |
| OS Version | 6.5 | 16 |
| OS Update Support | — | — |
| Direct OS Updates | — | Yes |
| Google Services | — | — |
| Web browser | WAP 2.0/xHTML, HTML | — |
| Java (J2ME) | — | — |
Connectivity
| Specification | X990 | nubia A57 |
|---|---|---|
| SIM Configurations | Mini-SIM | Dual Nano-SIM, Dual SIM Best value |
| Cellular Bands | 2G GSM 900, 2G GSM 1800 | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS B900, 3G UMTS 1900, 3G UMTS 2100, 4G LTE bands unspecified |
| Cellular Technologies | GSM, GPRS, EDGE | GSM, HSPA, LTE Best value |
| Wi-Fi Standards | — | Wi-Fi 802.11a/b/g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac) |
| Wi-Fi Features | — | Dual Band |
| Bluetooth Version | — | Bluetooth 5.2 |
| Bluetooth Profiles | A2DP | A2DP, LE |
| Navigation Systems | — | GPS, Galileo, GLONASS |
| Connectivity Features | MP3 Player, MP4/3GP Player, FM Radio, microUSB, USB 2.0 | 3.5 mm Audio Jack, USB Type-C, USB 2.0 |
| USB Version | USB 2.0 | USB 2.0 |
| SAR American Head | — | — |
| SAR American Body | — | — |
| SAR (EU) head | 0.96 W/kg | — |
| SAR (EU) body | — | — |
| Messaging | — | — |
Audio
| Specification | X990 | nubia A57 |
|---|---|---|
| Microphone Count | — | 2 |
| Audio Features | A2DP, Loudspeaker | A2DP, LE |
| Alert types | — | — |
Technical
| Specification | X990 | nubia A57 |
|---|---|---|
| EAN / GTIN | — | — |
| UPC | — | — |
| Launch price | — | — |
| MPN | — | — |
| Launch price (USD) | — | — |
Features
| Specification | X990 | nubia A57 |
|---|---|---|
| Built-in functions | Pocket Office, Organizer, Voice memo, Predictive text input, Audio/video player, Video player | — |
