Side-by-side technical data
ZTE V821 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 V821, if you care about…
- Weight
- 120 g
- against 193 g
ZTE nubia A57, if you care about…
- RAM Capacity
- 4 GB
- against 256 MB
- Wi-Fi Standards
- Wi-Fi 802.11a/b/g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
- against Wi-Fi 802.11b/g
- Display Technology
- IPS LCD
- against TFT LCD
- Bluetooth Version
- Bluetooth 5.2
- against Bluetooth 2.1
Specification comparison
Battery
| Specification | V821 | 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 | — | — |
| Standby time | — | — |
| Music playback time | — | — |
Design
| Specification | V821 | nubia A57 |
|---|---|---|
| Body Colors | Black | Silver, Black, Orange |
| Body Thickness | 11.8 mm | 7.95 mm Best value |
| Body Width | 56.5 mm | 70.4 mm |
| Body Height | 116 mm | 160.1 mm |
| Weight | 120 g Best value | 193 g |
| Usable Surface | — | 98.8 % |
| 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 | V821 | nubia A57 |
|---|---|---|
| Processor Model | MediaTek MT6516 | Unisoc T7250 |
| Processor Process Size | — | 12 nm |
| Graphics GPU | — | Mali-G57 MP1 |
| Storage Type | — | eMMC 5.1 |
| Maximum CPU Clock | 0.416 GHz | 1.8 GHz Best value |
| Maximum Storage Capacity | 256 MB | 128 GB Best value |
| AnTuTu Score | — | — |
| Geekbench 6 Single-Core | — | 437 |
| Geekbench 6 Multi-Core | — | 1,461 |
| CPU Description | 416 MHz | 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 | 256 MB | 4 GB Best value |
| RAM Type | — | DDR4 |
| Expandable Storage | Yes | Yes |
| AnTuTu version | — | — |
| 3DMark Wild Life Extreme | — | — |
| Maximum memory card | — | — |
Sensors
| Specification | V821 | nubia A57 |
|---|---|---|
| Fingerprint Sensor Placement | — | Side |
Display
| Specification | V821 | 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 | — | 6.75″ |
| Display Horizontal Resolution | 320 px | 720 px Best value |
| Display Vertical Resolution | 240 px | 1,570 px Best value |
| Display Pixel Density | — | 256 ppi |
| Display Refresh Rate | — | 120 Hz |
| Touch Sampling Rate | — | — |
| Display Contrast Ratio | — | — |
| Display Features | Resistive Touchscreen, 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 | 65K colors | — |
Sensor
| Specification | V821 | nubia A57 |
|---|---|---|
| Sensor Features | — | Fingerprint Sensor, Accelerometer, Proximity Sensor, Compass |
Software
| Specification | V821 | nubia A57 |
|---|---|---|
| Operating System | Android 2.2 | Android 16 |
| OS Family | Android | Android |
| OS Version | 2.2 | 16 Best value |
| OS Update Support | — | — |
| Direct OS Updates | — | Yes |
| Google Services | — | — |
| Web browser | — | — |
| Java (J2ME) | — | — |
Connectivity
| Specification | V821 | nubia A57 |
|---|---|---|
| SIM Configurations | Dual Mini-SIM | Dual Nano-SIM, Dual SIM |
| Cellular Bands | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900 | 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 802.11b/g | Wi-Fi 802.11a/b/g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac) Best value |
| Wi-Fi Features | Wi-Fi Hotspot | Dual Band |
| Bluetooth Version | Bluetooth 2.1 | Bluetooth 5.2 Best value |
| Bluetooth Profiles | A2DP | A2DP, LE |
| Navigation Systems | GPS, A-GPS | GPS, Galileo, GLONASS Best value |
| Connectivity Features | 3.5 mm Audio Jack, FM Radio, microUSB, MP3 Player, MP4/3GP Player, 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 | — | — |
| SAR (EU) body | — | — |
| Messaging | — | — |
Audio
| Specification | V821 | nubia A57 |
|---|---|---|
| Microphone Count | — | 2 |
| Audio Features | A2DP, Loudspeaker | A2DP, LE |
| Alert types | — | — |
Technical
| Specification | V821 | nubia A57 |
|---|---|---|
| EAN / GTIN | — | — |
| UPC | — | — |
| Launch price | — | — |
| MPN | — | — |
| Launch price (USD) | — | — |
Features
| Specification | V821 | nubia A57 |
|---|---|---|
| Built-in functions | Organizer, Voice memo, Predictive text input, Video player, MP3 player | — |
