Screen size
Q31Winner: 5.7"+7%
X4+5.3"
Quick verdict
Q31 leads the measured specs 7-2.
Measured wins
Q31
7
spec wins
Overall winner
Ties
8
equal specs
X4+
2
spec wins
Screen size
Technology
Q31
GSM / HSPA / LTE
X4+
GSM / HSPA / LTE
2G bands
Q31
GSM 850 / 900 / 1800 / 1900
X4+
GSM 850 / 900 / 1800 / 1900
3G bands
Q31
HSDPA 850 / 900 / 1900 / 2100
X4+
HSDPA 850 / 900 / 1900 / 2100
4G bands
Q31
LTE
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
equal specsMain camera
equal specsFront camera
equal specsBattery
equal specsWired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
X4+
1, 3, 5, 7, 8, 28, 38
Speed
Q31
HSPA, LTE
X4+
HSPA, LTE
Announced
Q31
2020, September 17. Released 2020, September 25
X4+
2018, January. Released 2018, February
Status
Q31
Discontinued
X4+
Discontinued
Dimensions
Q31
147.9 x 71 x 8.7 mm (5.82 x 2.80 x 0.34 in)
X4+
148.6 x 75.1 x 8.6 mm (5.85 x 2.96 x 0.34 in)
Weight
Q31
145 g (5.11 oz)
X4+
172.3 g (6.07 oz)
SIM
Q31
Nano-SIM
X4+
Nano-SIM + Nano-SIM
Other
Q31
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
X4+
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Type
Q31
IPS LCD
X4+
IPS LCD
Size
Q31
5.7 inches, 81.1 cm2 (~77.2% screen-to-body ratio)
X4+
5.3 inches, 77.4 cm2 (~69.4% screen-to-body ratio)
Resolution
Q31
720 x 1520 pixels, 19:9 ratio (~295 ppi density)
X4+
720 x 1280 pixels, 16:9 ratio (~277 ppi density)
OS
Q31
Android 10
X4+
Android 7.0 (Nougat)
Chipset
Q31
Mediatek MT6762 Helio P22 (12 nm)
X4+
Qualcomm MSM8917 Snapdragon 425 (28 nm)
CPU
Q31
Octa-core 2.0 GHz Cortex-A53
X4+
Quad-core 1.4 GHz Cortex-A53
GPU
Q31
PowerVR GE8320
X4+
Adreno 308
Card slot
Q31
microSDXC
X4+
microSDXC
Internal
Q31
32GB 3GB RAM
X4+
32GB 2GB RAM
Other
Q31
eMMC 5.1
X4+
eMMC 5.1
Dual
Q31
13 MP, f/1.8, 27mm (wide), 1/3.1", 1.12µm, PDAF 5 MP, f/2.2, 120˚ (ultrawide), 1/5.0", 1.12µm
X4+
-
Features
Q31
LED flash, panorama, HDR
X4+
LED flash, HDR
Video
Q31
1080p@30fps
X4+
1080p@30fps
Single
Q31
-
X4+
13 MP, f/2.2, 1/3.1", 1.12µm, AF
Single
Q31
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
X4+
5 MP, f/2.4, 1/5.0", 1.12µm
Video
Q31
1080p@30fps
X4+
1080p@30fps
Loudspeaker
Q31
Yes
X4+
Yes
3.5mm jack
Q31
Yes
X4+
Yes
Other
Q31
-
X4+
32-bit/192kHz Hi-Res audio
WLAN
Q31
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
X4+
Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct
Bluetooth
Q31
5.0, A2DP, LE
X4+
4.2, A2DP, LE
Positioning
Q31
GPS
X4+
GPS
NFC
Q31
No
X4+
Yes
Radio
Q31
No
X4+
FM radio
USB
Q31
microUSB 2.0
X4+
microUSB 2.0
Sensors
Q31
Accelerometer
X4+
Fingerprint (rear-mounted), accelerometer, proximity, compass
Type
Q31
Li-Ion 3000 mAh
X4+
Li-Ion 3000 mAh, non-removable
Colors
Q31
Silver
X4+
Lavender Violet, Moroccan Blue
Models
Q31
LM-Q310N
X4+
LM-X415L, LM-X410L, LM-X415S
Price
Q31
About 150 EUR
X4+
About 200 EUR