Screen size
Blue 20Winner: 6.5"+16%
C95.5"
Quick verdict
Blue 20 leads the measured specs 13-2.
Measured wins
Blue 20
13
spec wins
Overall winner
Ties
4
equal specs
C9
2
spec wins
Screen size
Technology
Blue 20
GSM / HSPA / LTE / 5G
C9
GSM / HSPA / LTE
2G bands
Blue 20
GSM 850 / 900 / 1800 / 1900
C9
GSM 850 / 900 / 1800 / 1900
3G bands
Blue 20
HSDPA 850 / 900 / 1900 / 2100
C9
HSDPA 850 / 900 / 1900 / 2100
4G bands
Blue 20
LTE
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
equal specsFront camera
equal specsBattery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
NFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
C9
1, 2, 3, 5, 8, 40
5G bands
Blue 20
SA/NSA
C9
-
Speed
Blue 20
HSPA, LTE, 5G
C9
HSPA, LTE
Announced
Blue 20
2024, July 17
C9
2018, December. Released 2018, December
Status
Blue 20
Available. Released 2024, July
C9
Discontinued
Dimensions
Blue 20
8.3 mm thickness
C9
146.2 x 71.2 x 9.7 mm (5.76 x 2.80 x 0.38 in)
Weight
Blue 20
-
C9
150 g (5.29 oz)
SIM
Blue 20
Nano-SIM + Nano-SIM
C9
Nano-SIM + Nano-SIM
Type
Blue 20
IPS LCD, 90Hz
C9
IGZO IPS LCD
Size
Blue 20
6.52 inches, 102.6 cm2
C9
5.45 inches, 76.7 cm2 (~73.6% screen-to-body ratio)
Resolution
Blue 20
1080 x 2400 pixels, 20:9 ratio (~404 ppi density)
C9
720 x 1440 pixels, 18:9 ratio (~295 ppi density)
OS
Blue 20
Flyme AIOS
C9
Android 8.0 (Oreo), Flyme UI
Chipset
Blue 20
Unisoc T765 (6 nm)
C9
Unisoc SC9832E
CPU
Blue 20
Octa-core (2x2.3 GHz Cortex-A76 & 6x2.1 GHz Cortex-A55)
C9
Quad-core 1.3 GHz Cortex-A53
GPU
Blue 20
Mali-G57 MC2
C9
Mali-820MP1
Card slot
Blue 20
microSDXC
C9
microSDXC (dedicated slot)
Internal
Blue 20
128GB 6GB RAM, 256GB 8GB RAM
C9
16GB 2GB RAM
Dual
Blue 20
13 MP, AF (interpolated to 50 MP) Secondary unspecified camera
C9
-
Features
Blue 20
LED flash, panorama, HDR
C9
LED flash, panorama
Video
Blue 20
4K@30fps, 1080p@30fps
C9
1080p@30fps
Single
Blue 20
-
C9
13 MP, f/2.2, 1/3.1", 1.12µm, AF
Single
Blue 20
5 MP (interpolated to 8 MP)
C9
8 MP, f/2.2, 1/4.0", 1.12µm
Video
Blue 20
1080p@30fps
C9
Loudspeaker
Blue 20
Yes, with stereo speakers
C9
Yes
3.5mm jack
Blue 20
Yes
C9
Yes
WLAN
Blue 20
Wi-Fi 802.11 a/b/g/n/ac, dual-band
C9
Wi-Fi 802.11 b/g/n
Bluetooth
Blue 20
5.0, A2DP
C9
4.1, A2DP, LE
Positioning
Blue 20
GPS, GALILEO, GLONASS, BDS
C9
GPS, GLONASS
NFC
Blue 20
Unspecified
C9
No
Radio
Blue 20
No
C9
No
USB
Blue 20
USB Type-C
C9
microUSB 2.0
Sensors
Blue 20
Fingerprint (side-mounted); unspecified sensors
C9
Accelerometer, proximity, compass
Type
Blue 20
5010 mAh
C9
Li-Ion 3000 mAh, removable
Colors
Blue 20
Black, White, Purple
C9
Black, Blue
Models
Blue 20
-
C9
C9
Price
Blue 20
-
C9
About 90 EUR