Screen size
S2 FEWinner: 6.8"+4.4%
U36.5"
Quick verdict
S2 FE leads the measured specs 16-3.
Measured wins
S2 FE
16
spec wins
Overall winner
Ties
3
equal specs
U3
3
spec wins
Screen size
Technology
S2 FE
GSM / HSPA / LTE / 5G
U3
GSM / CDMA / HSPA / LTE
2G bands
S2 FE
GSM 850 / 900 / 1800 / 1900
U3
GSM 850 / 900 / 1800 / 1900 , CDMA 800 & TD-SCDMA
3G bands
S2 FE
HSDPA 800 / 850 / 900 / 2100
U3
HSDPA 850 / 900 / 1900 / 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
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
equal specs5G support
NFC
equal specs3.5mm jack
SD card
Stereo speakers
U3
1, 3, 4, 5, 8, 34, 38, 39, 40, 41
5G bands
S2 FE
1, 3, 5, 8, 28, 38, 40, 41, 48, 66, 77, 78 SA/NSA
U3
-
Speed
S2 FE
HSPA, LTE, 5G
U3
HSPA, LTE
Announced
S2 FE
2026, October 06
U3
2019, October. Released 2019, October
Status
S2 FE
Released Oct 20, 2026
U3
Discontinued
Dimensions
S2 FE
163.9 x 76.5 x 8.6 mm (6.45 x 3.01 x 0.34 in)
U3
162.2 x 76.5 x 8.9 mm (6.39 x 3.01 x 0.35 in)
Weight
S2 FE
224 g (7.90 oz)
U3
193 g (6.81 oz)
Build
S2 FE
Glass front, plastic frame, plastic back
U3
Glass front, plastic back, plastic frame
SIM
S2 FE
Nano-SIM + Nano-SIM
U3
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
U3
-
Type
S2 FE
AMOLED, 1B colors, 120Hz, HDR10+, 1000 nits, 2000 nits (HBM)
U3
IPS LCD
Size
S2 FE
6.83 inches, 112.6 cm2 (~89.8% screen-to-body ratio)
U3
6.53 inches, 104.7 cm2 (~84.4% screen-to-body ratio)
Resolution
S2 FE
1260 x 2800 pixels, 20:9 ratio (~450 ppi density)
U3
1080 x 2340 pixels, 19.5:9 ratio (~395 ppi density)
OS
S2 FE
Android 16, OriginOS 6
U3
Android 9.0 (Pie), Funtouch 9.0
Chipset
S2 FE
Mediatek Dimensity 7300e (6 nm)
U3
Qualcomm SDM675 Snapdragon 675 (11 nm)
CPU
S2 FE
Octa-core (4x2.5 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
U3
Octa-core (2x2.0 GHz Kryo 460 Gold & 6x1.7 GHz Kryo 460 Silver)
GPU
S2 FE
Mali-G610
U3
Adreno 612
Card slot
S2 FE
No
U3
microSDXC (uses shared SIM slot)
Internal
S2 FE
128GB 6GB RAM, 128GB 8GB RAM
U3
64GB 4GB RAM, 64GB 6GB RAM
Other
S2 FE
UFS 3.1
U3
UFS 2.1
Dual
S2 FE
50 MP, f/1.8, (wide), 1/2.93", PDAF Auxiliary lens
U3
-
Features
S2 FE
LED flash, HDR, panorama
U3
LED flash, HDR, panorama
Video
S2 FE
Yes
U3
4K@30fps, 1080p@30fps
Triple
S2 FE
-
U3
16 MP, f/1.8, (wide), PDAF 8 MP, f/2.2, 13mm (ultrawide) 2 MP (macro)
Single
S2 FE
32 MP, f/2.0, 22mm (wide)
U3
16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm
Video
S2 FE
1080p@30fps
U3
1080p@30fps
Features
S2 FE
-
U3
HDR
Loudspeaker
S2 FE
Yes, with stereo speakers
U3
Yes
3.5mm jack
S2 FE
No
U3
Yes
WLAN
S2 FE
Yes
U3
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
S2 FE
5.4, A2DP, LE
U3
5.0, A2DP, LE, aptX
Positioning
S2 FE
GPS, GALILEO, GLONASS, QZSS, BDS
U3
GPS, GLONASS, GALILEO, BDS
NFC
S2 FE
No
U3
No
Radio
S2 FE
No
U3
FM radio
USB
S2 FE
USB Type-C 2.0, OTG
U3
microUSB 2.0, OTG
Sensors
S2 FE
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
U3
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Type
S2 FE
Si/C Li-Ion 10000 mAh
U3
5000 mAh, non-removable
Charging
S2 FE
44W wired Reverse wired
U3
18W wired 5W reverse wired
Colors
S2 FE
Stellar Green, Zen White, Titan Black
U3
Black, Blue, Green
SAR
S2 FE
1.14 W/kg (head) 1.00 W/kg (body)
U3
-
Price
S2 FE
About 360 EUR
U3
About 130 EUR
Models
S2 FE
-
U3
V1941A, V1941T