LG K31 vs LG K40
Side-by-side specs and price comparison for buyers in Algeria.
LG K31
Price coming soon
LG K40
Price coming soon
Quick Verdict
Who wins each category, side by side.
Better price
Even
Faster chip
Even
Bigger battery
Even
Faster charging
Even
Higher-resolution camera
LG K40
Better display
LG K31
Lighter body
LG K40
Best value for money
Even
Full specs comparison
Display
| Spec | LG K31 | LG K40 |
|---|---|---|
| Size (inches) | 5.7 | 5.7 |
| Panel Type | IPS LCD | IPS LCD |
| Resolution Height | 1520 | 1440 |
| Resolution Width | 720 | 720 |
| PPI | 295 | 282 |
| Screen-to-body | 77.2 | 76.2 |
Platform
| Spec | LG K31 | LG K40 |
|---|---|---|
| CPU | Octa-core 2.0 GHz Cortex-A53 | Octa-core 2.0 GHz Cortex-A53 |
| GPU | PowerVR GE8320 | PowerVR GE8320 |
| Chipset Name | Helio P22 | Helio P22 |
| Process (nm) | 12 | 12 |
| OS Name | Android | Android |
| OS Version | 10 | 8.1 |
Memory
| Spec | LG K31 | LG K40 |
|---|---|---|
| Card Slot | microSDXC | microSDXC (dedicated slot) |
| Variants | 32GB 2GB RAM | 32GB 2GB RAM, 32GB 3GB RAM |
Main Camera
| Spec | LG K31 | LG K40 |
|---|---|---|
| Video | 1080p@30fps | 1080p@30fps |
| Features | LED flash, panorama, HDR | LED flash, panorama, HDR |
| Count | 2 | 1 |
| Lens | — | 16 MP, f/2 |
| ultrawide | 5 MP, f/2.2, (ultrawide) | — |
| Wide | 13 MP, f/1.8, 27mm, (wide) | — |
Selfie Camera
| Spec | LG K31 | LG K40 |
|---|---|---|
| Video | 1080p@30fps | 1080p@30fps |
| Features | — | LED flash |
| Count | 1 | 1 |
| Lens | 5 MP, f/2.2, 24mm, (wide) | 8 MP, f/2 |
Battery
| Spec | LG K31 | LG K40 |
|---|---|---|
| Capacity (mAh) | 3000 | 3000 |
| Chemistry | Li-Ion | Li-Ion |
Body
| Spec | LG K31 | LG K40 |
|---|---|---|
| Build | — | Glass front, plastic back, plastic frame |
| SIM | Nano-SIM + Nano-SIM | Nano-SIMNano-SIM + Nano-SIM |
| Height (mm) | 147.8 | 153 |
| Thickness (mm) | 8.6 | 8.3 |
| Weight (g) | 146 | 144 |
| Width (mm) | 71.1 | 71.9 |
Launch
| Spec | LG K31 | LG K40 |
|---|---|---|
| Announced | 2020, August 21 | 2019, February. Released 2019, April |
| Status | Available. Released 2020, August 21 | Discontinued |
Network
| Spec | LG K31 | LG K40 |
|---|---|---|
| 2G Bands | GSM 850, 900, 1800, 1900 | GSM 850, 900, 1800, 1900 |
| 3G Bands | HSDPA 850, 900, 1700(AWS), 1900, 2100 | HSDPA 850, 900, 1900, 2100 |
| 4G Bands | 2, 4, 5, 12, 13, 25, 26, 41, 66, 71 | 1, 3, 7, 8, 20 |
| Speed | HSPA, LTE | HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps |
| Technology | GSM, CDMA, HSPA, LTE | GSM, HSPA, LTE |
Connectivity
| Spec | LG K31 | LG K40 |
|---|---|---|
| Bluetooth | 5 | 5 |
| NFC | No | Yes (market/region dependent) |
| Positioning | GPS | GPS, GLONASS |
| Radio | No | No |
| USB Version | 2.0 | 2.0 |
| Wi-Fi | Wi-Fi 4 | Wi-Fi 5 |
Sound
| Spec | LG K31 | LG K40 |
|---|---|---|
| 3.5mm Jack | Yes | Yes |
| Loudspeaker | Yes | Yes |
Features
| Spec | LG K31 | LG K40 |
|---|---|---|
| Sensors | Fingerprint (rear-mounted), accelerometer | Fingerprint (rear-mounted), accelerometer, proximity, compass |
Buying advice for Algeria
Both LG K31 and LG K40 are sold in Algeria, but they fit different priorities.
LG K40 reaches a higher main-sensor resolution at 16 MP, which helps with crops and lower-light photos.
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