Side-by-side technical data
Lava Z81 vs Lava Smart 4
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?
Lava Z81, if you care about…
- Display Technology
- IPS LCD
- against TFT LCD
- Display Pixel Density
- 282 ppi
- against 202 ppi
- Weight
- 141 g
- against 197 g
- Body Thickness
- 7.9 mm
- against 8.8 mm
Lava Smart 4, if you care about…
- Battery Capacity
- 5,000 mAh
- against 3,000 mAh
- Usable Surface
- 81.9 %
- against 75.5 %
- Display Diagonal
- 6.56″
- against 5.7″
- OS Version
- 16
- against 8
Specification comparison
Battery
| Specification | Z81 | Smart 4 |
|---|---|---|
| Battery Efficiency Rating | — | — |
| Battery Capacity | 3,000 mAh | 5,000 mAh Best value |
| Battery Type | Li-Po | Li-Ion |
| Fast Charge Power | 10 W | 10 W |
| Battery Features | Battery Level Indicator, Rechargeable | Fast Charging |
| Battery Endurance | — | — |
| Wireless charging power | — | — |
| Charge cycles | — | — |
| Talk time | — | — |
| Standby time | — | — |
| Music playback time | — | — |
Design
| Specification | Z81 | Smart 4 |
|---|---|---|
| Body Colors | Black, Blue, Gold | Grey, Gold |
| Body Thickness | 7.9 mm Best value | 8.8 mm |
| Body Width | 73 mm | 76.5 mm |
| Body Height | 152.2 mm | 165 mm |
| Weight | 141 g Best value | 197 g |
| Usable Surface | 75.5 % | 81.9 % Best value |
| Body Materials | — | — |
| Resistance Features | — | — |
| Waterproof Depth | — | — |
| Drop Resistance Class | — | — |
| Repairability Class | — | — |
| Foldable | No | No |
| Rugged Build | No | No |
| Drop Test Count | — | — |
| Unfolded thickness | 7.9 mm | — |
| QWERTY keyboard | — | — |
Performance
| Specification | Z81 | Smart 4 |
|---|---|---|
| Processor Model | MediaTek Helio A22 | Unisoc SC9863A |
| Processor Process Size | 12 nm Best value | 28 nm |
| Graphics GPU | PowerVR GE8320 | IMG8322 |
| Storage Type | eMMC 5.1 | — |
| Maximum CPU Clock | 2 GHz Best value | 1.6 GHz |
| Maximum Storage Capacity | 32 GB | 32 GB |
| AnTuTu Score | — | — |
| Geekbench 6 Single-Core | 332 | — |
| Geekbench 6 Multi-Core | 1,145 | — |
| CPU Description | Quad-core 2.0 GHz Cortex-A53 | Octa-core processor with four 1.6 GHz Cortex-A55 cores and four 1.2 GHz Cortex-A55 cores |
| Processor Type | Quad-Core | Octa-Core |
| 64-Bit Processor | Yes | — |
| RAM Capacity | 3 GB | 3 GB |
| RAM Type | — | — |
| Expandable Storage | Yes | Yes |
| AnTuTu version | — | — |
| 3DMark Wild Life Extreme | — | — |
| Maximum memory card | — | — |
Sensors
| Specification | Z81 | Smart 4 |
|---|---|---|
| Fingerprint Sensor Placement | Rear | Side |
Display
| Specification | Z81 | Smart 4 |
|---|---|---|
| Display Aspect Ratio | 18:9 | 20:9 |
| Peak Display Brightness | — | — |
| Display Technology | IPS LCD Best value | TFT LCD |
| Display Diagonal | 5.7″ | 6.56″ Best value |
| Display Horizontal Resolution | 720 px Best value | 540 px |
| Display Vertical Resolution | 1,440 px Best value | 1,210 px |
| Display Pixel Density | 282 ppi Best value | 202 ppi |
| Display Refresh Rate | — | — |
| Touch Sampling Rate | — | — |
| Display Contrast Ratio | — | — |
| Display Features | Gorilla Glass 3, Touchscreen | — |
| 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 | — | — |
Sensor
| Specification | Z81 | Smart 4 |
|---|---|---|
| Sensor Features | Fingerprint Sensor, Accelerometer, Proximity Sensor | Fingerprint Sensor, Accelerometer, Proximity Sensor, Compass |
Software
| Specification | Z81 | Smart 4 |
|---|---|---|
| Operating System | Android 8 | Android 16 |
| OS Family | Android | Android |
| OS Version | 8 | 16 Best value |
| OS Update Support | — | — |
| Direct OS Updates | No | — |
| Google Services | — | — |
| Web browser | — | — |
| Java (J2ME) | — | — |
Connectivity
| Specification | Z81 | Smart 4 |
|---|---|---|
| SIM Configurations | Dual Nano-SIM, Dual SIM | Dual Nano-SIM |
| Cellular Bands | 2G GSM 900, 2G GSM 1800, 3G UMTS B900, 3G UMTS 2100, 4G LTE B1, 4G LTE B3, 4G LTE B5, 4G LTE B8, 4G LTE B40, 4G LTE B41 | 2G GSM 900, 2G GSM 1800, 3G UMTS B900, 3G UMTS 2100, 4G LTE B1, 4G LTE B3, 4G LTE B5, 4G LTE B8, 4G LTE B40, 4G LTE B41 |
| Cellular Technologies | GSM, HSPA, LTE, 4G | GSM, HSPA, LTE |
| Wi-Fi Standards | Wi-Fi 802.11 b/g/n | Wi-Fi 4 (802.11n), Wi-Fi 802.11b/g |
| Wi-Fi Features | Wi-Fi Direct | — |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 4.2 |
| Bluetooth Profiles | A2DP, LE | A2DP |
| Navigation Systems | GPS | GPS |
| Connectivity Features | 3.5 mm Audio Jack, FM Radio, microUSB, USB 2.0 | 3.5 mm Audio Jack, FM Radio, USB Type-C, USB OTG |
| USB Version | USB 2.0 | — |
| SAR American Head | — | — |
| SAR American Body | — | — |
| SAR (EU) head | — | — |
| SAR (EU) body | — | — |
| Messaging | — | — |
Audio
| Specification | Z81 | Smart 4 |
|---|---|---|
| Microphone Count | 1 | — |
| Audio Features | A2DP, LE, Loudspeaker | A2DP |
| Alert types | — | — |
Technical
| Specification | Z81 | Smart 4 |
|---|---|---|
| EAN / GTIN | — | — |
| UPC | — | — |
| Launch price | — | — |
| MPN | — | — |
| Launch price (USD) | — | — |
Features
| Specification | Z81 | Smart 4 |
|---|---|---|
| Built-in functions | — | — |
