Screen size
S2 FEWinner: 6.8"+4.7%
Y21s6.5"
Quick verdict
S2 FE leads the measured specs 13-5.
Measured wins
S2 FE
13
spec wins
Overall winner
Ties
4
equal specs
Y21s
5
spec wins
Screen size
Technology
S2 FE
GSM / HSPA / LTE / 5G
Y21s
GSM / HSPA / LTE
2G bands
S2 FE
GSM 850 / 900 / 1800 / 1900
Y21s
GSM 850 / 900 / 1800 / 1900
3G bands
S2 FE
HSDPA 800 / 850 / 900 / 2100
Y21s
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 , HSDPA 850 / 900 / 2100
4G bands
S2 FE
1, 3, 4, 5, 8, 19, 28, 38, 40, 41, 42, 43, 48, 66
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
equal specsMain camera
equal specsFront camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
equal specs5G support
NFC
3.5mm jack
SD card
Stereo speakers
Y21s
1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 40, 41, 66, 1, 3, 5, 8, 40
5G bands
S2 FE
1, 3, 5, 8, 28, 38, 40, 41, 48, 66, 77, 78 SA/NSA
Y21s
-
Speed
S2 FE
HSPA, LTE, 5G
Y21s
HSPA, LTE
Announced
S2 FE
2026, October 06
Y21s
2021, September 21
Status
S2 FE
Released Oct 20, 2026
Y21s
Available. Released 2021, September 21
Dimensions
S2 FE
163.9 x 76.5 x 8.6 mm (6.45 x 3.01 x 0.34 in)
Y21s
164.3 x 76.1 x 8 mm (6.47 x 3.00 x 0.31 in)
Weight
S2 FE
224 g (7.90 oz)
Y21s
182 g (6.42 oz)
Build
S2 FE
Glass front, plastic frame, plastic back
Y21s
-
SIM
S2 FE
Nano-SIM + Nano-SIM
Y21s
Nano-SIM + Nano-SIM
Other
S2 FE
IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min) MIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions
Y21s
-
Type
S2 FE
AMOLED, 1B colors, 120Hz, HDR10+, 1000 nits, 2000 nits (HBM)
Y21s
IPS LCD
Size
S2 FE
6.83 inches, 112.6 cm2 (~89.8% screen-to-body ratio)
Y21s
6.51 inches, 102.3 cm2 (~81.8% screen-to-body ratio)
Resolution
S2 FE
1260 x 2800 pixels, 20:9 ratio (~450 ppi density)
Y21s
720 x 1600 pixels, 20:9 ratio (~270 ppi density)
OS
S2 FE
Android 16, OriginOS 6
Y21s
Android 11, Funtouch 11.1
Chipset
S2 FE
Mediatek Dimensity 7300e (6 nm)
Y21s
Mediatek MT6769V/CU Helio G80 (12 nm)
CPU
S2 FE
Octa-core (4x2.5 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
Y21s
Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
GPU
S2 FE
Mali-G610
Y21s
Mali-G52 MC2
Card slot
S2 FE
No
Y21s
microSDXC (dedicated slot)
Internal
S2 FE
128GB 6GB RAM, 128GB 8GB RAM
Y21s
128GB 4GB RAM, 128GB 6GB RAM
Other
S2 FE
UFS 3.1
Y21s
-
Dual
S2 FE
50 MP, f/1.8, (wide), 1/2.93", PDAF Auxiliary lens
Y21s
-
Features
S2 FE
LED flash, HDR, panorama
Y21s
LED flash
Video
S2 FE
Yes
Y21s
1080p@30fps
Triple
S2 FE
-
Y21s
50 MP, f/1.8, 24mm (wide), PDAF 2 MP (macro) Auxiliary lens
Single
S2 FE
32 MP, f/2.0, 22mm (wide)
Y21s
8 MP, f/2.0, (wide)
Video
S2 FE
1080p@30fps
Y21s
1080p@30fps
Features
S2 FE
-
Y21s
HDR
Loudspeaker
S2 FE
Yes, with stereo speakers
Y21s
Yes
3.5mm jack
S2 FE
No
Y21s
Yes
WLAN
S2 FE
Yes
Y21s
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
S2 FE
5.4, A2DP, LE
Y21s
5.0, A2DP, LE
Positioning
S2 FE
GPS, GALILEO, GLONASS, QZSS, BDS
Y21s
GPS, GLONASS, GALILEO, BDS
NFC
S2 FE
No
Y21s
Yes (market/region dependent)
Radio
S2 FE
No
Y21s
FM radio
USB
S2 FE
USB Type-C 2.0, OTG
Y21s
USB Type-C 2.0, OTG
Sensors
S2 FE
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Y21s
Fingerprint (side-mounted), accelerometer, proximity, compass
Type
S2 FE
Si/C Li-Ion 10000 mAh
Y21s
5000 mAh
Charging
S2 FE
44W wired Reverse wired
Y21s
18W wired 2.5W reverse wired
Colors
S2 FE
Stellar Green, Zen White, Titan Black
Y21s
Midnight Blue, Pearl White
SAR
S2 FE
1.14 W/kg (head) 1.00 W/kg (body)
Y21s
0.83 W/kg (head) 1.09 W/kg (body)
Price
S2 FE
About 360 EUR
Y21s
-
Models
S2 FE
-
Y21s
V2110