Screen size
S2 FEWinner: 6.8"+4.7%
Y15s6.5"
Quick verdict
S2 FE leads the measured specs 15-4.
Measured wins
S2 FE
15
spec wins
Overall winner
Ties
3
equal specs
Y15s
4
spec wins
Screen size
Technology
S2 FE
GSM / HSPA / LTE / 5G
Y15s
GSM / HSPA / LTE
2G bands
S2 FE
GSM 850 / 900 / 1800 / 1900
Y15s
GSM 850 / 900 / 1800 / 1900
3G bands
S2 FE
HSDPA 800 / 850 / 900 / 2100
Y15s
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
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
Y15s
1, 3, 5, 7, 8, 20, 28, 38, 39, 40, 41 - Singapore, 1, 3, 5, 8, 38, 40, 41 - India
5G bands
S2 FE
1, 3, 5, 8, 28, 38, 40, 41, 48, 66, 77, 78 SA/NSA
Y15s
-
Speed
S2 FE
HSPA, LTE, 5G
Y15s
HSPA, LTE
Announced
S2 FE
2026, October 06
Y15s
2021, November 09
Status
S2 FE
Released Oct 20, 2026
Y15s
Available. Released 2021, November 09
Dimensions
S2 FE
163.9 x 76.5 x 8.6 mm (6.45 x 3.01 x 0.34 in)
Y15s
164 x 75.2 x 8.3 mm (6.46 x 2.96 x 0.33 in)
Weight
S2 FE
224 g (7.90 oz)
Y15s
179 g (6.31 oz)
Build
S2 FE
Glass front, plastic frame, plastic back
Y15s
Glass front, plastic back, plastic frame
SIM
S2 FE
Nano-SIM + Nano-SIM
Y15s
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
Y15s
-
Type
S2 FE
AMOLED, 1B colors, 120Hz, HDR10+, 1000 nits, 2000 nits (HBM)
Y15s
IPS LCD
Size
S2 FE
6.83 inches, 112.6 cm2 (~89.8% screen-to-body ratio)
Y15s
6.51 inches, 102.3 cm2 (~83.0% screen-to-body ratio)
Resolution
S2 FE
1260 x 2800 pixels, 20:9 ratio (~450 ppi density)
Y15s
720 x 1600 pixels, 20:9 ratio (~270 ppi density)
OS
S2 FE
Android 16, OriginOS 6
Y15s
Android 11 (Go edition), Funtouch 11.1 - vivo 15sAndroid 12, Funtouch 12 - vivo 15c
Chipset
S2 FE
Mediatek Dimensity 7300e (6 nm)
Y15s
Mediatek MT6765 Helio P35 (12 nm)
CPU
S2 FE
Octa-core (4x2.5 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
Y15s
Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
GPU
S2 FE
Mali-G610
Y15s
PowerVR GE8320
Card slot
S2 FE
No
Y15s
microSDXC (dedicated slot)
Internal
S2 FE
128GB 6GB RAM, 128GB 8GB RAM
Y15s
32GB 3GB RAM, 64GB 3GB RAM, 64GB 4GB RAM
Other
S2 FE
UFS 3.1
Y15s
eMMC 5.1
Dual
S2 FE
50 MP, f/1.8, (wide), 1/2.93", PDAF Auxiliary lens
Y15s
13 MP, f/2.2, 27mm (wide), AF Auxiliary lens
Features
S2 FE
LED flash, HDR, panorama
Y15s
LED flash, panorama
Video
S2 FE
Yes
Y15s
1080p@30fps
Single
S2 FE
32 MP, f/2.0, 22mm (wide)
Y15s
8 MP, f/2.0
Video
S2 FE
1080p@30fps
Y15s
1080p@30fps
Loudspeaker
S2 FE
Yes, with stereo speakers
Y15s
Yes
3.5mm jack
S2 FE
No
Y15s
Yes
WLAN
S2 FE
Yes
Y15s
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
S2 FE
5.4, A2DP, LE
Y15s
5.0, A2DP, LE
Positioning
S2 FE
GPS, GALILEO, GLONASS, QZSS, BDS
Y15s
GPS, GLONASS, GALILEO, BDS
NFC
S2 FE
No
Y15s
No
Radio
S2 FE
No
Y15s
FM radio
USB
S2 FE
USB Type-C 2.0, OTG
Y15s
microUSB 2.0, OTG
Sensors
S2 FE
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Y15s
Fingerprint (side-mounted), accelerometer, proximity, compass
Type
S2 FE
Si/C Li-Ion 10000 mAh
Y15s
5000 mAh
Charging
S2 FE
44W wired Reverse wired
Y15s
10W wired 5W reverse wired
Colors
S2 FE
Stellar Green, Zen White, Titan Black
Y15s
Wave Green, Mystic Blue
SAR
S2 FE
1.14 W/kg (head) 1.00 W/kg (body)
Y15s
-
Price
S2 FE
About 360 EUR
Y15s
About 120 EUR
Models
S2 FE
-
Y15s
V2120, V2147, V2139