Screen size
Blue 20Winner: 6.5"+16%
MX4 Pro5.5"
Quick verdict
Blue 20 leads the measured specs 13-4.
Measured wins
Blue 20
13
spec wins
Overall winner
Ties
2
equal specs
MX4 Pro
4
spec wins
Screen size
Technology
Blue 20
GSM / HSPA / LTE / 5G
MX4 Pro
GSM / HSPA / LTE
2G bands
Blue 20
GSM 850 / 900 / 1800 / 1900
MX4 Pro
GSM 850 / 900 / 1800 / 1900
3G bands
Blue 20
HSDPA 850 / 900 / 1900 / 2100
MX4 Pro
HSDPA 850 / 900 / 1900 / 2100 , TD-SCDMA - China Mobile
4G bands
Blue 20
LTE
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
5G support
NFC
equal specs3.5mm jack
equal specsSD card
Stereo speakers
MX4 Pro
1, 3, 7, 38, 39, 40, 41 - China Mobile
5G bands
Blue 20
SA/NSA
MX4 Pro
-
Speed
Blue 20
HSPA, LTE, 5G
MX4 Pro
HSPA, LTE Cat4 150/50 Mbps
Announced
Blue 20
2024, July 17
MX4 Pro
2014, October. Released 2014, December
Status
Blue 20
Available. Released 2024, July
MX4 Pro
Discontinued
Dimensions
Blue 20
8.3 mm thickness
MX4 Pro
150.1 x 77 x 9 mm (5.91 x 3.03 x 0.35 in)
Weight
Blue 20
-
MX4 Pro
158 g (5.57 oz)
SIM
Blue 20
Nano-SIM + Nano-SIM
MX4 Pro
Micro-SIM
Type
Blue 20
IPS LCD, 90Hz
MX4 Pro
IPS LCD
Size
Blue 20
6.52 inches, 102.6 cm2
MX4 Pro
5.5 inches, 85.2 cm2 (~73.7% screen-to-body ratio)
Resolution
Blue 20
1080 x 2400 pixels, 20:9 ratio (~404 ppi density)
MX4 Pro
1536 x 2560 pixels, 5:3 ratio (~546 ppi density)
Protection
Blue 20
-
MX4 Pro
Corning Gorilla Glass 3
OS
Blue 20
Flyme AIOS
MX4 Pro
Android 4.4.4 (KitKat), Flyme 4
Chipset
Blue 20
Unisoc T765 (6 nm)
MX4 Pro
Exynos 5430 Octa (20 nm)
CPU
Blue 20
Octa-core (2x2.3 GHz Cortex-A76 & 6x2.1 GHz Cortex-A55)
MX4 Pro
Octa-core (4x2.0 GHz Cortex-A15 & 4x1.5 GHz Cortex-A7)
GPU
Blue 20
Mali-G57 MC2
MX4 Pro
Mali-T628MP6
Card slot
Blue 20
microSDXC
MX4 Pro
No
Internal
Blue 20
128GB 6GB RAM, 256GB 8GB RAM
MX4 Pro
16GB 3GB RAM, 32GB 3GB RAM, 64GB 3GB RAM
Other
Blue 20
-
MX4 Pro
eMMC 5.0
Dual
Blue 20
13 MP, AF (interpolated to 50 MP) Secondary unspecified camera
MX4 Pro
-
Features
Blue 20
LED flash, panorama, HDR
MX4 Pro
Dual-LED dual-tone flash, HDR, panorama
Video
Blue 20
4K@30fps, 1080p@30fps
MX4 Pro
4K@30fps, 1080p@30fps
Single
Blue 20
-
MX4 Pro
20.7 MP, f/2.2, 1/2.3", AF
Single
Blue 20
5 MP (interpolated to 8 MP)
MX4 Pro
5 MP, f/2.0
Video
Blue 20
1080p@30fps
MX4 Pro
1080p@30fps
Loudspeaker
Blue 20
Yes, with stereo speakers
MX4 Pro
Yes
3.5mm jack
Blue 20
Yes
MX4 Pro
Yes
WLAN
Blue 20
Wi-Fi 802.11 a/b/g/n/ac, dual-band
MX4 Pro
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Bluetooth
Blue 20
5.0, A2DP
MX4 Pro
4.0, A2DP, LE
Positioning
Blue 20
GPS, GALILEO, GLONASS, BDS
MX4 Pro
GPS, GLONASS, BDS, QZSS
NFC
Blue 20
Unspecified
MX4 Pro
Yes
Radio
Blue 20
No
MX4 Pro
No
USB
Blue 20
USB Type-C
MX4 Pro
microUSB 2.0, OTG
Sensors
Blue 20
Fingerprint (side-mounted); unspecified sensors
MX4 Pro
Fingerprint (front-mounted), accelerometer, gyro, proximity, compass
Type
Blue 20
5010 mAh
MX4 Pro
Li-Ion 3350 mAh, non-removable
Colors
Blue 20
Black, White, Purple
MX4 Pro
Gray, Gold, White
Models
Blue 20
-
MX4 Pro
MX4 Pro
Price
Blue 20
-
MX4 Pro
About 400 EUR