Screen size
Optimus Z3.5"
Q31Winner: 5.7"+39%
Quick verdict
Q31 leads the measured specs 12-1.
Measured wins
Optimus Z
1
spec wins
Ties
4
equal specs
Q31
12
spec wins
Overall winner
Screen size
Technology
Optimus Z
GSM / HSPA
Q31
GSM / HSPA / LTE
2G bands
Optimus Z
GSM 850 / 900 / 1800 / 1900
Q31
GSM 850 / 900 / 1800 / 1900
3G bands
Optimus Z
HSDPA 2100
Q31
HSDPA 850 / 900 / 1900 / 2100
Speed
Optimus Z
HSPA 7.2/0.384 Mbps
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
Q31
HSPA, LTE
4G bands
Optimus Z
-
Q31
LTE
Announced
Optimus Z
2010, April. Released 2010, July
Q31
2020, September 17. Released 2020, September 25
Status
Optimus Z
Discontinued
Q31
Discontinued
Dimensions
Optimus Z
117.9 x 56.9 x 11 mm (4.64 x 2.24 x 0.43 in)
Q31
147.9 x 71 x 8.7 mm (5.82 x 2.80 x 0.34 in)
Weight
Optimus Z
135 g (4.76 oz)
Q31
145 g (5.11 oz)
SIM
Optimus Z
Mini-SIM
Q31
Nano-SIM
Other
Optimus Z
-
Q31
MIL-STD-810G compliant* *does not guarantee ruggedness or use in extreme conditions
Type
Optimus Z
TFT, 256K colors
Q31
IPS LCD
Size
Optimus Z
3.5 inches, 37.9 cm2 (~56.5% screen-to-body ratio)
Q31
5.7 inches, 81.1 cm2 (~77.2% screen-to-body ratio)
Resolution
Optimus Z
480 x 640 pixels, 4:3 ratio (~229 ppi density)
Q31
720 x 1520 pixels, 19:9 ratio (~295 ppi density)
Protection
Optimus Z
Corning Gorilla Glass
Q31
-
OS
Optimus Z
Android 2.1 (Eclair), upgradable to 2.2 (Froyo)
Q31
Android 10
Chipset
Optimus Z
Qualcomm QSD8250 Snapdragon S1
Q31
Mediatek MT6762 Helio P22 (12 nm)
CPU
Optimus Z
1.0 GHz Scorpion
Q31
Octa-core 2.0 GHz Cortex-A53
GPU
Optimus Z
Adreno 200
Q31
PowerVR GE8320
Card slot
Optimus Z
microSDHC (dedicated slot), 4 GB included
Q31
microSDXC
Internal
Optimus Z
-
Q31
32GB 3GB RAM
Other
Optimus Z
-
Q31
eMMC 5.1
Single
Optimus Z
5 MP, AF
Q31
-
Video
Optimus Z
720p
Q31
1080p@30fps
Dual
Optimus Z
-
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
Features
Optimus Z
-
Q31
LED flash, panorama, HDR
Other
Optimus Z
No
Q31
-
Single
Optimus Z
-
Q31
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
Video
Optimus Z
-
Q31
1080p@30fps
Loudspeaker
Optimus Z
Yes
Q31
Yes
3.5mm jack
Optimus Z
Yes
Q31
Yes
WLAN
Optimus Z
Wi-Fi 802.11 b/g, DLNA, hotspot (Android 2.2)
Q31
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
Optimus Z
2.1, A2DP
Q31
5.0, A2DP, LE
Positioning
Optimus Z
GPS, A-GPS
Q31
GPS
Radio
Optimus Z
No
Q31
No
USB
Optimus Z
microUSB 2.0
Q31
microUSB 2.0
NFC
Optimus Z
-
Q31
No
Sensors
Optimus Z
Accelerometer, proximity, compass
Q31
Accelerometer
Browser
Optimus Z
WAP 2.0/xHTML, HTML, Adobe Flash
Q31
-
Other
Optimus Z
On-screen-phone function Drag & Shake file sharing TV Tuner (T-DMB) HDMI port MP3/WMA/AAC player DivX/MP4/H.263 player Organizer Document viewer Voice memo Predictive text input
Q31
-
Type
Optimus Z
Removable Li-Ion 1350 mAh battery
Q31
Li-Ion 3000 mAh
Stand-by
Optimus Z
Up to 200 h
Q31
-
Talk time
Optimus Z
Up to 4 h 10 min
Q31
-
Colors
Optimus Z
Black, White, Pink
Q31
Silver
Models
Optimus Z
-
Q31
LM-Q310N
Price
Optimus Z
-
Q31
About 150 EUR