The verdict
Your pick: LG K71, ahead on Design & display and Performance & hardware. Unless Camera decides it for you.
| Category | K51 | K71 |
|---|---|---|
| Design & display | 4.6 | 5.1 |
| Performance & hardware | 2.1 | 2.7 |
| Camera | 6.8 | 4.5 |
| Connectivity | 4.5 | 4.7 |
| Battery & charging | 3.8 | 3.8 |
Which one is for you?
LG K51, if you care about…
- Weight
- 204 g
- against 220 g
- Geekbench 6 Single-Core
- 233
- against 164
- Max. upload speed
- 150 Mbps
- against 50 Mbps
LG K71, if you care about…
- AnTuTu Score
- 103,114
- against 92,000
- RAM Capacity
- 4 GB
- against 3 GB
- Maximum Storage Capacity
- 128 GB
- against 32 GB
- RAM Type
- DDR4
- against LPDDR3
Specification comparison
Performance
| Specification | K51 | K71 |
|---|---|---|
| Processor Model | MediaTek Helio P22 | MediaTek Helio P35 |
| Processor Process Size | 12 nm | 12 nm |
| Graphics GPU | PowerVR GE8320 | PowerVR GE8320 |
| Storage Type | eMMC 5.1 | eMMC 5.1 |
| Maximum CPU Clock | 2 GHz | 2.3 GHz Best value |
| Maximum Storage Capacity | 32 GB | 128 GB Best value |
| AnTuTu Score | 92,000 | 103,114 Best value |
| Geekbench 6 Single-Core | 233 Best value | 164 |
| Geekbench 6 Multi-Core | 723 | 744 Best value |
| CPU Description | 4x Cortex-A53 at 2.0 GHz + 4x Cortex-A53 at 1.5 GHz | Octa-core CPU with 4 × Cortex-A53 at 2.3 GHz and 4 × Cortex-A53 at 1.8 GHz |
| Processor Type | Octa-Core | Octa-Core |
| 64-Bit Processor | Yes | Yes |
| RAM Capacity | 3 GB | 4 GB Best value |
| RAM Type | LPDDR3 | DDR4 Best value |
| Expandable Storage | Yes | Yes |
| AnTuTu version | v8 | v8 |
Design
| Specification | K51 | K71 |
|---|---|---|
| Body Colors | Grey | Black, White |
| Body Thickness | 8.5 mm Best value | 8.7 mm |
| Body Width | 77.9 mm | 77.7 mm |
| Body Height | 167 mm | 171.4 mm |
| Weight | 204 g Best value | 220 g |
| Usable Surface | 79 % | 82.5 % Best value |
| Body Materials | Plastic | Metal Best value |
| Resistance Features | MIL-STD-810G | Stylus Support |
Battery
| Specification | K51 | K71 |
|---|---|---|
| Battery Capacity | 4,000 mAh | 4,000 mAh |
| Battery Type | Li-Ion | Li-Polymer |
| Fast Charge Power | — | 0 W |
| Battery Features | Non-Removable, Battery Level Indicator, Rechargeable | Non-Removable, Fast Charging, Rechargeable, Battery Level Indicator |
Display
| Specification | K51 | K71 |
|---|---|---|
| Display Aspect Ratio | 19.5:9 | 20.5:9 |
| Display Technology | IPS LCD | IPS LCD |
| Display Diagonal | 6.5″ | 6.8″ Best value |
| Display Horizontal Resolution | 720 px | 1,080 px Best value |
| Display Vertical Resolution | 1,560 px | 2,460 px Best value |
| Display Pixel Density | 264 ppi | 395 ppi Best value |
| Display Features | Water Drop Notch, Capacitive Touch, Multi-Touch, Always-On Display, Touchscreen | TFT LCD, Water Drop Notch, Curved Glass, Capacitive Touch, Multi-Touch, Touchscreen, Stylus Support |
Sensors
| Specification | K51 | K71 |
|---|---|---|
| Fingerprint Sensor Placement | Rear | Rear |
Sensor
| Specification | K51 | K71 |
|---|---|---|
| Sensor Features | Fingerprint Sensor, Accelerometer, Gyroscope, Light Sensor, Proximity Sensor, Compass | Fingerprint Sensor, Accelerometer, Proximity Sensor, Light Sensor |
Software
| Specification | K51 | K71 |
|---|---|---|
| Operating System | Android 9 | Android 10 |
| OS Family | Android | Android |
| OS Version | 9 | 10 Best value |
| Google Services | Yes | Yes |
Connectivity
| Specification | K51 | K71 |
|---|---|---|
| SIM Configurations | Single Nano-SIM | Single Nano-SIM |
| Cellular Bands | 2G CDMA BC0, 2G CDMA BC1, 2G CDMA BC10, 2G GSM B2, 2G GSM B3, 2G GSM B5, 2G GSM B8, 3G UMTS B1, 3G UMTS B2, 3G UMTS B4, 3G UMTS B5, 3G UMTS B8, 4G LTE B2, 4G LTE B4, 4G LTE B12, 4G LTE B13, 4G LTE B25, 4G LTE B26, 4G LTE B41, 4G LTE B66, 4G LTE B71 | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS B900, 3G UMTS 1900, 3G UMTS 2100, 2G CDMA BC0, 2G CDMA B2, 2G CDMA B3, 2G CDMA B5, 2G CDMA B8, 3G UMTS B1, 3G UMTS B2, 3G UMTS B4, 3G UMTS B5, 3G UMTS B8, 4G LTE B1, 4G LTE B2, 4G LTE B3, 4G LTE B4, 4G LTE B5, 4G LTE B7, 4G LTE B12, 4G LTE B17, 4G LTE B18, 4G LTE B20, 4G LTE B71, 4G LTE bands unspecified |
| Cellular Technologies | 4G, LTE | GSM, HSPA, UMTS, LTE, 4G |
| Wi-Fi Standards | Wi-Fi 802.11a/b/g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac) | Wi-Fi 802.11 b/g/n, Wi-Fi 802.11a/b/g/n/ac, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac) |
| Wi-Fi Features | Dual Band, Wi-Fi Hotspot, Wi-Fi Direct | Dual Band, Wi-Fi Hotspot, Wi-Fi Direct |
| Bluetooth Version | Bluetooth 5.0 | Bluetooth 5.0 |
| Bluetooth Profiles | A2DP, AVRCP, GAVDP, GATT, HFP, HID, HSP, MAP, PAN, SPP, OPP, PBAP/PAB, HOGP, GOEP | A2DP, LE |
| Navigation Systems | GPS, A-GPS | GPS, A-GPS |
| Connectivity Features | 3.5 mm Audio Jack, Computer Sync, DLNA, NFC, OTA Sync, FM Radio, Tethering, USB Charging, USB Mass Storage, USB OTG, USB Type-C | USB Charging, USB Mass Storage, USB OTG, USB Type-C, NFC, 3.5 mm Audio Jack, FM Radio, Computer Sync, OTA Sync, Tethering, VoLTE, DLNA |
| USB Version | — | USB 2.0 |
| SAR American Head | 1 W/kg | 0.97 W/kg Best value |
| SAR American Body | 0.97 W/kg Best value | 1 W/kg |
| Max. download speed | 300 Mbps | 300 Mbps |
| Max. upload speed | 150 Mbps Best value | 50 Mbps |
Audio
| Specification | K51 | K71 |
|---|---|---|
| Microphone Count | 1 | 2 Best value |
| Audio Features | DTS, DTS:X, Stereo Speakers | Stereo Speakers, DTS, DTS:X |
Technical
| Specification | K51 | K71 |
|---|---|---|
| Model numbers | — | LMQ730HA, LM-Q730HA |
