Screen size
Compass 25.0"
Optimax 12Winner: 7.0"+29%
Quick verdict
Optimax 12 leads the measured specs 5-4.
Measured wins
Compass 2
4
spec wins
Ties
8
equal specs
Optimax 12
5
spec wins
Overall winner
Screen size
Technology
Compass 2
GSM / HSPA
Optimax 12
GSM / HSPA
2G bands
Compass 2
GSM 850 / 900 / 1800 / 1900
Optimax 12
GSM 850 / 900 / 1800 / 1900
3G bands
Compass 2
HSDPA 850 / 1900 / 2100
Optimax 12
HSDPA 850 / 1900 / 2100
Speed
Compass 2
HSPA 14.4/5.76 Mbps
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
equal specsStorage
equal specsMain camera
Front camera
equal specsBattery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
Optimax 12
HSPA 21.1/5.76 Mbps
Announced
Compass 2
2018, March. Released 2018, March
Optimax 12
2018, March. Released 2018, April
Status
Compass 2
Discontinued
Optimax 12
Discontinued
Dimensions
Compass 2
144 x 72.7 x 9.8 mm (5.67 x 2.86 x 0.39 in)
Optimax 12
188 x 107.5 x 10.3 mm (7.40 x 4.23 x 0.41 in)
Weight
Compass 2
165 g (5.82 oz)
Optimax 12
272 g (9.59 oz)
SIM
Compass 2
Dual SIM (Micro-SIM, dual stand-by)
Optimax 12
Dual SIM (Mini-SIM, dual stand-by)
Type
Compass 2
TN TFT
Optimax 12
TN TFT
Size
Compass 2
5.0 inches, 68.9 cm2 (~65.8% screen-to-body ratio)
Optimax 12
7.0 inches, 137.9 cm2 (~68.2% screen-to-body ratio)
Resolution
Compass 2
480 x 854 pixels, 16:9 ratio (~196 ppi density)
Optimax 12
600 x 1024 pixels, 16:9 ratio (~170 ppi density)
OS
Compass 2
Android 6.0 (Marshmallow)
Optimax 12
Android 6.0 (Marshmallow)
Chipset
Compass 2
Spreadtrum SC7731C
Optimax 12
Mediatek MT8321 (28 nm)
CPU
Compass 2
Quad-core 1.2 GHz Cortex-A7
Optimax 12
Quad-core 1.3 GHz Cortex-A7
GPU
Compass 2
Mali-400
Optimax 12
Mali-400
Card slot
Compass 2
microSDHC
Optimax 12
microSDHC
Internal
Compass 2
8GB 1GB RAM
Optimax 12
8GB 1GB RAM
Single
Compass 2
8 MP, AF
Optimax 12
5 MP
Features
Compass 2
LED flash
Optimax 12
LED flash
Video
Compass 2
720p@30fps
Optimax 12
720p@30fps
Single
Compass 2
2 MP
Optimax 12
2 MP
Video
Compass 2
Optimax 12
Loudspeaker
Compass 2
Yes
Optimax 12
Yes
3.5mm jack
Compass 2
Yes
Optimax 12
Yes
WLAN
Compass 2
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Optimax 12
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
Compass 2
2.1, EDR
Optimax 12
4.0, A2DP
Positioning
Compass 2
GPS
Optimax 12
GPS
NFC
Compass 2
No
Optimax 12
No
Radio
Compass 2
FM radio
Optimax 12
FM radio
USB
Compass 2
microUSB 2.0
Optimax 12
microUSB 2.0
Sensors
Compass 2
Accelerometer
Optimax 12
Accelerometer
Type
Compass 2
Li-Ion 2000 mAh, removable
Optimax 12
Li-Ion 2400 mAh battery
Stand-by
Compass 2
Up to 170 h (2G) / Up to 200 h (3G)
Optimax 12
Up to 132 h
Talk time
Compass 2
Up to 5 h 30 min (2G) / Up to 5 h 30 min (3G)
Optimax 12
Up to 3 h
Colors
Compass 2
Black, Silver, Gold, Rose Gold
Optimax 12
Black, Silver, Rose Gold