NIU
Side-by-side technical data
NIU Tek 4D2 vs NIU GO 21
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?
NIU Tek 4D2, if you care about…
- Battery Capacity
- 1,200 mAh
- against 650 mAh
- Bluetooth Version
- Bluetooth 4.0
- against Bluetooth 2.1
- Display Pixel Density
- 233 ppi
- against 114 ppi
- Usable Surface
- 58.8 %
- against 21.6 %
NIU GO 21, if you care about…
- Weight
- 66 g
- against 152 g
Specification comparison
Battery
| Specification | Tek 4D2 | GO 21 |
|---|---|---|
| Battery Efficiency Rating | — | — |
| Battery Capacity | 1,200 mAh Best value | 650 mAh |
| Battery Type | Li-Ion | Li-Ion |
| Fast Charge Power | — | — |
| Battery Features | — | — |
| Battery Endurance | — | — |
| Wireless charging power | — | — |
| Charge cycles | — | — |
| Talk time | 8 h Best value | 6 h |
| Standby time | 400 h Best value | 200 h |
| Music playback time | — | — |
Design
| Specification | Tek 4D2 | GO 21 |
|---|---|---|
| Body Colors | Black, Grey, White, Blue, Orange | Black, Orange, Grey, Red, Green, Blue |
| Body Thickness | 10.3 mm Best value | 14.2 mm |
| Body Width | 63 mm | 44.9 mm |
| Body Height | 123 mm | 105 mm |
| Weight | 152 g | 66 g Best value |
| Usable Surface | 58.8 % Best value | 21.6 % |
| Body Materials | — | — |
| Resistance Features | — | — |
| Waterproof Depth | — | — |
| Drop Resistance Class | — | — |
| Repairability Class | — | — |
| Foldable | No | No |
| Rugged Build | No | No |
| Drop Test Count | — | — |
| Unfolded thickness | — | — |
| QWERTY keyboard | — | — |
Performance
| Specification | Tek 4D2 | GO 21 |
|---|---|---|
| Processor Model | MediaTek MT6572M | — |
| Processor Process Size | 28 nm | — |
| Graphics GPU | Mali-400 | — |
| Storage Type | — | — |
| Maximum CPU Clock | 1 GHz | — |
| Maximum Storage Capacity | 4 GB | — |
| AnTuTu Score | — | — |
| Geekbench 6 Single-Core | — | — |
| Geekbench 6 Multi-Core | — | — |
| CPU Description | Dual-core 1.0 GHz Cortex-A7 | — |
| Processor Type | Dual-Core | — |
| 64-Bit Processor | — | — |
| RAM Capacity | 512 MB | — |
| RAM Type | — | — |
| Expandable Storage | Yes | Yes |
| AnTuTu version | — | — |
| 3DMark Wild Life Extreme | — | — |
| Maximum memory card | — | — |
Sensors
| Specification | Tek 4D2 | GO 21 |
|---|---|---|
| Fingerprint Sensor Placement | — | — |
Display
| Specification | Tek 4D2 | GO 21 |
|---|---|---|
| Display Aspect Ratio | 5:3 | 4:5 |
| Peak Display Brightness | — | — |
| Display Technology | TFT LCD | TFT LCD |
| Display Diagonal | 4″ Best value | 1.8″ |
| Display Horizontal Resolution | 480 px Best value | 128 px |
| Display Vertical Resolution | 800 px Best value | 160 px |
| Display Pixel Density | 233 ppi Best value | 114 ppi |
| Display Refresh Rate | — | — |
| Touch Sampling Rate | — | — |
| Display Contrast Ratio | — | — |
| Display Features | — | — |
| 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 | Tek 4D2 | GO 21 |
|---|---|---|
| Sensor Features | Accelerometer | — |
Software
| Specification | Tek 4D2 | GO 21 |
|---|---|---|
| Operating System | Android 4.4 | — |
| OS Family | Android | — |
| OS Version | 4 | — |
| OS Update Support | — | — |
| Direct OS Updates | — | — |
| Google Services | — | — |
| Web browser | — | — |
| Java (J2ME) | — | No |
Connectivity
| Specification | Tek 4D2 | GO 21 |
|---|---|---|
| SIM Configurations | Dual Mini-SIM + Micro-SIM | Dual Mini-SIM |
| Cellular Bands | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS 1900 | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900 |
| Cellular Technologies | GSM, HSPA Best value | GSM, GPRS |
| Wi-Fi Standards | Wi-Fi 802.11a/b/g/n | — |
| Wi-Fi Features | Dual Band, Wi-Fi Hotspot | — |
| Bluetooth Version | Bluetooth 4.0 Best value | Bluetooth 2.1 |
| Bluetooth Profiles | A2DP | EDR |
| Navigation Systems | GPS | — |
| Connectivity Features | 3.5 mm Audio Jack, FM Radio, microUSB | 3.5 mm Audio Jack, FM Radio, USB Charging, microUSB |
| USB Version | microUSB | USB 2.0 |
| SAR American Head | — | — |
| SAR American Body | — | — |
| SAR (EU) head | — | — |
| SAR (EU) body | — | — |
| Messaging | — | SMS, MMS, Instant messaging |
Audio
| Specification | Tek 4D2 | GO 21 |
|---|---|---|
| Microphone Count | — | — |
| Audio Features | A2DP, Loudspeaker | EDR |
| Alert types | — | — |
Technical
| Specification | Tek 4D2 | GO 21 |
|---|---|---|
| EAN / GTIN | — | — |
| UPC | — | — |
| Launch price | — | — |
| MPN | — | — |
| Launch price (USD) | — | — |
Features
| Specification | Tek 4D2 | GO 21 |
|---|---|---|
| Built-in functions | — | Audio/video player, Organizer, Predictive text input |
