Screen size
iQOO Z5x6.6"
S2 FEWinner: 6.8"+3.7%
Quick verdict
S2 FE leads the measured specs 10-4.
Measured wins
iQOO Z5x
4
spec wins
Ties
8
equal specs
S2 FE
10
spec wins
Overall winner
Screen size
Technology
iQOO Z5x
GSM / CDMA / HSPA / CDMA2000 / LTE / 5G
S2 FE
GSM / HSPA / LTE / 5G
2G bands
iQOO Z5x
GSM 850 / 900 / 1800 / 1900 , CDMA 800
S2 FE
GSM 850 / 900 / 1800 / 1900
3G bands
iQOO Z5x
HSDPA 850 / 900 / 1700(AWS) / 2100 , CDMA2000 1x
S2 FE
HSDPA 800 / 850 / 900 / 2100
4G bands
iQOO Z5x
1, 3, 4, 5, 8, 28, 34, 38, 39, 40, 41
Resolution
Refresh rate
equal specsPeak brightness
Pixel density
CPU speed
RAM
equal specsStorage
equal specsMain camera
equal specsFront camera
Battery
Wired charging
equal specsWeight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
equal specsNFC
equal specs3.5mm jack
SD card
equal specsStereo speakers
S2 FE
1, 3, 4, 5, 8, 19, 28, 38, 40, 41, 42, 43, 48, 66
5G bands
iQOO Z5x
1, 3, 28, 41, 77, 78 SA/NSA
S2 FE
1, 3, 5, 8, 28, 38, 40, 41, 48, 66, 77, 78 SA/NSA
Speed
iQOO Z5x
HSPA, LTE, 5G
S2 FE
HSPA, LTE, 5G
Announced
iQOO Z5x
2021, October 20
S2 FE
2026, October 06
Status
iQOO Z5x
Available. Released 2021, November 01
S2 FE
Released Oct 20, 2026
Dimensions
iQOO Z5x
164 x 75.3 x 8.5 mm (6.46 x 2.96 x 0.33 in)
S2 FE
163.9 x 76.5 x 8.6 mm (6.45 x 3.01 x 0.34 in)
Weight
iQOO Z5x
189 g (6.67 oz)
S2 FE
224 g (7.90 oz)
Build
iQOO Z5x
Glass front, plastic frame, plastic back
S2 FE
Glass front, plastic frame, plastic back
SIM
iQOO Z5x
Nano-SIM + Nano-SIM
S2 FE
Nano-SIM + Nano-SIM
Other
iQOO Z5x
-
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
Type
iQOO Z5x
IPS LCD, 120Hz
S2 FE
AMOLED, 1B colors, 120Hz, HDR10+, 1000 nits, 2000 nits (HBM)
Size
iQOO Z5x
6.58 inches, 104.3 cm2 (~84.5% screen-to-body ratio)
S2 FE
6.83 inches, 112.6 cm2 (~89.8% screen-to-body ratio)
Resolution
iQOO Z5x
1080 x 2408 pixels, 20:9 ratio (~401 ppi density)
S2 FE
1260 x 2800 pixels, 20:9 ratio (~450 ppi density)
OS
iQOO Z5x
Android 11, OriginOS 1.0 for iQOO
S2 FE
Android 16, OriginOS 6
Chipset
iQOO Z5x
Mediatek Dimensity 900 (6 nm)
S2 FE
Mediatek Dimensity 7300e (6 nm)
CPU
iQOO Z5x
Octa-core (2x2.4 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55)
S2 FE
Octa-core (4x2.5 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
GPU
iQOO Z5x
Mali-G68 MC4
S2 FE
Mali-G610
Card slot
iQOO Z5x
No
S2 FE
No
Internal
iQOO Z5x
128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM
S2 FE
128GB 6GB RAM, 128GB 8GB RAM
Other
iQOO Z5x
-
S2 FE
UFS 3.1
Dual
iQOO Z5x
50 MP, f/1.8, 26mm (wide), PDAF 2 MP (macro)
S2 FE
50 MP, f/1.8, (wide), 1/2.93", PDAF Auxiliary lens
Features
iQOO Z5x
LED flash, HDR, panorama
S2 FE
LED flash, HDR, panorama
Video
iQOO Z5x
4K@30fps, 1080p@30/60fps, gyro-EIS
S2 FE
Yes
Single
iQOO Z5x
8 MP, f/2.0, (wide)
S2 FE
32 MP, f/2.0, 22mm (wide)
Video
iQOO Z5x
1080p@30fps
S2 FE
1080p@30fps
Loudspeaker
iQOO Z5x
Yes
S2 FE
Yes, with stereo speakers
3.5mm jack
iQOO Z5x
Yes
S2 FE
No
WLAN
iQOO Z5x
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
S2 FE
Yes
Bluetooth
iQOO Z5x
5.2, A2DP, LE, aptX HD
S2 FE
5.4, A2DP, LE
Positioning
iQOO Z5x
GPS, GLONASS, GALILEO, BDS, QZSS
S2 FE
GPS, GALILEO, GLONASS, QZSS, BDS
NFC
iQOO Z5x
No
S2 FE
No
Radio
iQOO Z5x
No
S2 FE
No
USB
iQOO Z5x
USB Type-C, OTG
S2 FE
USB Type-C 2.0, OTG
Sensors
iQOO Z5x
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
S2 FE
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Type
iQOO Z5x
5000 mAh
S2 FE
Si/C Li-Ion 10000 mAh
Charging
iQOO Z5x
44W wired, 70% in 38 min
S2 FE
44W wired Reverse wired
Colors
iQOO Z5x
Black, Orange, Silver
S2 FE
Stellar Green, Zen White, Titan Black
Price
iQOO Z5x
About 220 EUR
S2 FE
About 360 EUR
SAR
iQOO Z5x
-
S2 FE
1.14 W/kg (head) 1.00 W/kg (body)