Screen size
Quick verdict
Note 21 leads the measured specs 8-7.
Measured wins
Blue 20
7
spec wins
Ties
4
equal specs
Note 21
8
spec wins
Overall winner
Screen size
Technology
Blue 20
GSM / HSPA / LTE / 5G
Note 21
GSM / HSPA / LTE
2G bands
Blue 20
GSM 850 / 900 / 1800 / 1900
Note 21
GSM 850 / 900 / 1800 / 1900
3G bands
Blue 20
HSDPA 850 / 900 / 1900 / 2100
Note 21
HSDPA 850 / 900 / 1900 / 2100
4G bands
Blue 20
LTE
Resolution
Refresh rate
equal specsPeak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front 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
Note 21
LTE
5G bands
Blue 20
SA/NSA
Note 21
-
Speed
Blue 20
HSPA, LTE, 5G
Note 21
HSPA, LTE
Announced
Blue 20
2024, July 17
Note 21
2024, September 13
Status
Blue 20
Available. Released 2024, July
Note 21
Available. Released 2024, October
Dimensions
Blue 20
8.3 mm thickness
Note 21
-
Weight
Blue 20
-
Note 21
-
SIM
Blue 20
Nano-SIM + Nano-SIM
Note 21
Nano-SIM + Nano-SIM
Type
Blue 20
IPS LCD, 90Hz
Note 21
IPS LCD, 90Hz, 450 nits
Size
Blue 20
6.52 inches, 102.6 cm2
Note 21
6.74 inches, 109.7 cm2
Resolution
Blue 20
1080 x 2400 pixels, 20:9 ratio (~404 ppi density)
Note 21
720 x 1600 pixels*, 20:9 ratio (~260 ppi density)
Other
Blue 20
-
Note 21
* display resolution is not officially specified
OS
Blue 20
Flyme AIOS
Note 21
Flyme OS
Chipset
Blue 20
Unisoc T765 (6 nm)
Note 21
Unisoc T606 (12 nm)
CPU
Blue 20
Octa-core (2x2.3 GHz Cortex-A76 & 6x2.1 GHz Cortex-A55)
Note 21
Octa-core (2x1.6 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
GPU
Blue 20
Mali-G57 MC2
Note 21
Mali-G57 MP1
Card slot
Blue 20
microSDXC
Note 21
microSDXC
Internal
Blue 20
128GB 6GB RAM, 256GB 8GB RAM
Note 21
256GB 8GB RAM
Dual
Blue 20
13 MP, AF (interpolated to 50 MP) Secondary unspecified camera
Note 21
50 MP, AF 2 MP
Features
Blue 20
LED flash, panorama, HDR
Note 21
LED flash, panorama, HDR
Video
Blue 20
4K@30fps, 1080p@30fps
Note 21
Yes
Single
Blue 20
5 MP (interpolated to 8 MP)
Note 21
8 MP
Video
Blue 20
1080p@30fps
Note 21
Yes
Loudspeaker
Blue 20
Yes, with stereo speakers
Note 21
Yes
3.5mm jack
Blue 20
Yes
Note 21
Yes
WLAN
Blue 20
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Note 21
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
Blue 20
5.0, A2DP
Note 21
5.3, A2DP
Positioning
Blue 20
GPS, GALILEO, GLONASS, BDS
Note 21
GPS
NFC
Blue 20
Unspecified
Note 21
No
Radio
Blue 20
No
Note 21
No
USB
Blue 20
USB Type-C
Note 21
USB Type-C
Sensors
Blue 20
Fingerprint (side-mounted); unspecified sensors
Note 21
Fingerprint (side-mounted); unspecified sensors
Type
Blue 20
5010 mAh
Note 21
6000 mAh
Charging
Blue 20
-
Note 21
18W wired
Colors
Blue 20
Black, White, Purple
Note 21
Ivory, Diamond Black, Gulf Blue