Screen size
15 Plus6.0"
Blue 20Winner: 6.5"+8.7%
Quick verdict
Blue 20 leads the measured specs 9-8.
Measured wins
15 Plus
8
spec wins
Ties
3
equal specs
Blue 20
9
spec wins
Overall winner
Screen size
Technology
15 Plus
GSM / CDMA / HSPA / LTE
Blue 20
GSM / HSPA / LTE / 5G
2G bands
15 Plus
GSM 850 / 900 / 1800 / 1900 , CDMA 800 & TD-SCDMA
Blue 20
GSM 850 / 900 / 1800 / 1900
3G bands
15 Plus
HSDPA 850 / 900 / 1900 / 2100
Blue 20
HSDPA 850 / 900 / 1900 / 2100
4G bands
15 Plus
1, 3, 4, 5, 7, 8, 34, 38, 39, 40, 41, 1, 3, 4, 5, 8, 34, 38, 39, 40, 41, 1, 3, 5, 8, 34, 38, 39, 40, 41
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
equal specsStorage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
NFC
3.5mm jack
equal specsSD card
Stereo speakers
equal specsBlue 20
LTE
Speed
15 Plus
HSPA, LTE
Blue 20
HSPA, LTE, 5G
5G bands
15 Plus
-
Blue 20
SA/NSA
Announced
15 Plus
2018, April. Released 2018, April
Blue 20
2024, July 17
Status
15 Plus
Discontinued
Blue 20
Available. Released 2024, July
Dimensions
15 Plus
153.8 x 78.3 x 7.3 mm (6.06 x 3.08 x 0.29 in)
Blue 20
8.3 mm thickness
Weight
15 Plus
177 g (6.24 oz)
Blue 20
-
SIM
15 Plus
Nano-SIM + Nano-SIM
Blue 20
Nano-SIM + Nano-SIM
Type
15 Plus
Super AMOLED
Blue 20
IPS LCD, 90Hz
Size
15 Plus
5.95 inches, 97.6 cm2 (~81.0% screen-to-body ratio)
Blue 20
6.52 inches, 102.6 cm2
Resolution
15 Plus
1440 x 2560 pixels, 16:9 ratio (~494 ppi density)
Blue 20
1080 x 2400 pixels, 20:9 ratio (~404 ppi density)
OS
15 Plus
Android 7.1.2 (Nougat), Flyme 7.3
Blue 20
Flyme AIOS
Chipset
15 Plus
Exynos 8895 (10 nm)
Blue 20
Unisoc T765 (6 nm)
CPU
15 Plus
Octa-core (4x2.5 GHz Mongoose M2 & 4x1.7 GHz Cortex-A53)
Blue 20
Octa-core (2x2.3 GHz Cortex-A76 & 6x2.1 GHz Cortex-A55)
GPU
15 Plus
Mali-G71 MP20
Blue 20
Mali-G57 MC2
Card slot
15 Plus
No
Blue 20
microSDXC
Internal
15 Plus
64GB 6GB RAM, 128GB 6GB RAM
Blue 20
128GB 6GB RAM, 256GB 8GB RAM
Other
15 Plus
UFS 2.1
Blue 20
-
Dual
15 Plus
12 MP, f/1.8, 1/2.3", 1.55 µm, dual pixel PDAF, 4-axis OIS 20 MP, 1/2.8", 1.0 µm, AF, portraits only
Blue 20
13 MP, AF (interpolated to 50 MP) Secondary unspecified camera
Features
15 Plus
Laser AF, Six-LED dual-tone flash, HDR, panorama
Blue 20
LED flash, panorama, HDR
Video
15 Plus
4K@30fps, 1080p@30fps (gyro-EIS)
Blue 20
4K@30fps, 1080p@30fps
Single
15 Plus
20 MP, f/2.0, (wide), 1/2.8", 1.0µm
Blue 20
5 MP (interpolated to 8 MP)
Video
15 Plus
1080p@30fps
Blue 20
1080p@30fps
Loudspeaker
15 Plus
Yes, with stereo speakers
Blue 20
Yes, with stereo speakers
3.5mm jack
15 Plus
Yes
Blue 20
Yes
WLAN
15 Plus
Wi-Fi 802.11 b/g/n/ac, dual-band, Wi-Fi Direct
Blue 20
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
15 Plus
4.2, A2DP, LE
Blue 20
5.0, A2DP
Positioning
15 Plus
GPS, GLONASS, BDS, GALILEO, SBAS, QZSS
Blue 20
GPS, GALILEO, GLONASS, BDS
NFC
15 Plus
No
Blue 20
Unspecified
Radio
15 Plus
No
Blue 20
No
USB
15 Plus
USB Type-C 2.0
Blue 20
USB Type-C
Sensors
15 Plus
Fingerprint (front-mounted), accelerometer, gyro, proximity, compass, barometer
Blue 20
Fingerprint (side-mounted); unspecified sensors
Type
15 Plus
Li-Ion 3500 mAh, non-removable
Blue 20
5010 mAh
Charging
15 Plus
24W wired
Blue 20
-
Colors
15 Plus
Gray, Yakin, Ink
Blue 20
Black, White, Purple
Price
15 Plus
About 480 EUR
Blue 20
-