LG K40 vs LG Q31
Side-by-side specs and price comparison for buyers in Algeria.
LG K40
Price coming soon
LG Q31
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 Q31
Lighter body
LG K40
Best value for money
Even
Full specs comparison
Display
| Spec | LG K40 | LG Q31 |
|---|---|---|
| Size (inches) | 5.7 | 5.7 |
| Panel Type | IPS LCD | IPS LCD |
| Resolution Height | 1440 | 1520 |
| Resolution Width | 720 | 720 |
| PPI | 282 | 295 |
| Screen-to-body | 76.2 | 77.2 |
Platform
| Spec | LG K40 | LG Q31 |
|---|---|---|
| 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 | 8.1 | 10 |
Memory
| Spec | LG K40 | LG Q31 |
|---|---|---|
| Card Slot | microSDXC (dedicated slot) | microSDXC |
| Variants | 32GB 2GB RAM, 32GB 3GB RAM | 32GB 3GB RAM |
Main Camera
| Spec | LG K40 | LG Q31 |
|---|---|---|
| Video | 1080p@30fps | 1080p@30fps |
| Features | LED flash, panorama, HDR | LED flash, panorama, HDR |
| Count | 1 | 2 |
| Lens | 16 MP, f/2 | — |
| ultrawide | — | 5 MP, f/2.2, (ultrawide) |
| Wide | — | 13 MP, f/1.8, 27mm, (wide) |
Selfie Camera
| Spec | LG K40 | LG Q31 |
|---|---|---|
| Video | 1080p@30fps | 1080p@30fps |
| Features | LED flash | — |
| Count | 1 | 1 |
| Lens | 8 MP, f/2 | 5 MP, f/2.2, 24mm, (wide) |
Battery
| Spec | LG K40 | LG Q31 |
|---|---|---|
| Capacity (mAh) | 3000 | 3000 |
| Chemistry | Li-Ion | Li-Ion |
Body
| Spec | LG K40 | LG Q31 |
|---|---|---|
| Build | Glass front, plastic back, plastic frame | — |
| SIM | Nano-SIMNano-SIM + Nano-SIM | Nano-SIM |
| Height (mm) | 153 | 147.9 |
| Thickness (mm) | 8.3 | 8.7 |
| Weight (g) | 144 | 145 |
| Width (mm) | 71.9 | 71 |
Launch
| Spec | LG K40 | LG Q31 |
|---|---|---|
| Announced | 2019, February. Released 2019, April | 2020, September 17 |
| Status | Discontinued | Available. Released 2020, September 25 |
Network
| Spec | LG K40 | LG Q31 |
|---|---|---|
| 2G Bands | GSM 850, 900, 1800, 1900 | GSM 850, 900, 1800, 1900 |
| 3G Bands | HSDPA 850, 900, 1900, 2100 | HSDPA 850, 900, 1900, 2100 |
| 4G Bands | 1, 3, 7, 8, 20 | LTE |
| Speed | HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps | HSPA, LTE |
| Technology | GSM, HSPA, LTE | GSM, HSPA, LTE |
Connectivity
| Spec | LG K40 | LG Q31 |
|---|---|---|
| Bluetooth | 5 | 5 |
| NFC | Yes (market/region dependent) | No |
| Positioning | GPS, GLONASS | GPS |
| Radio | No | No |
| USB Version | 2.0 | 2.0 |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 4 |
Sound
| Spec | LG K40 | LG Q31 |
|---|---|---|
| 3.5mm Jack | Yes | Yes |
| Loudspeaker | Yes | Yes |
Features
| Spec | LG K40 | LG Q31 |
|---|---|---|
| Sensors | Fingerprint (rear-mounted), accelerometer, proximity, compass | Accelerometer |
Buying advice for Algeria
Both LG K40 and LG Q31 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.
Other popular comparisons
Samsung Galaxy S26 Ultra vs Apple iPhone 17 Pro Max
Samsung compared to Apple
Samsung Galaxy S26 Ultra vs Google Pixel 10 Pro XL
Samsung compared to Google
Samsung Galaxy S26 Ultra vs Xiaomi 15 Ultra
Samsung compared to Xiaomi
Apple iPhone 17 Pro Max vs Xiaomi 15 Ultra
Apple compared to Xiaomi
Apple iPhone 17 Pro Max vs Google Pixel 10 Pro XL
Apple compared to Google
Samsung Galaxy S26+ vs Apple iPhone 17
Samsung compared to Apple