realme C75x vs Vivo iQOO 15 Ultra

realme C75x
realme
C75x
Vivo iQOO 15 Ultra
Vivo
iQOO 15 Ultra

At a glance

Brand
realme
vivo
Release date
April 2025, 1 years 2 months ago
February 2026, 4 months ago
AnTuTu
262.145 Antutu v10 Overall performance better than 60% of devices
4.518.403 Antutu v11 Overall performance better than 100% of devices
Launch price
CN¥ 5,699.00 ($ 832.57)

Display

Size
6.67"
6.85"
Resolution
720 x 1604 px HD+
1440 x 3168 px WQHD+
Type
LCD IPS
AMOLED Samsung
Density
264 ppi Medium Density
508 ppi Very high density
Aspect ratio
21:9
20:9
Features
Hole-punch Notch, TÜV Rheinland Flicker-free Certified, Refresh rate 120 Hz, Touch sampling rate 240 Hz, TÜV Rheinland Eye Comfort Certification, DCI-P3, Scratch resistant, 2.5D curved glass screen, Capacitive, Multi-touch, Frameless
Hole-punch Notch, SGS Certified, TÜV Rheinland Flicker-free Certified, 2160 Hz PWM, TÜV Low Blue Light, 1-144 Hz refresh rate, Refresh rate 144 Hz, Touch sampling rate 480 Hz, Brightnes 1000 cd/m² (typ), Max brightness HBM - 2600 cd/m², Peak brightness - 8000 cd/m², 8000000:1 contrast ratio, TÜV Rheinland Eye Comfort Certification, HDR10+, DCI-P3, DC dimming, 10 Bits panel, Dolby Vision, Scratch resistant, Capacitive, Multi-touch, Frameless, LTPO (Low Temperature PolySilicon oxide)

Performance

Chipset
MediaTek Helio G81 Ultra
Qualcomm Snapdragon 8 Elite Gen 5
CPU
2x Cortex A75 2.0 GHz + 6x Cortex A55 1.8 GHz
2x4.61 GHz ARM + 6x3.63 GHz ARM
CPU type
Octa-Core
Octa-Core
Process
12 nm
3 nm
Frequency
2 GHz
4.61 GHz
GPU
Mali-G52 MC2
Adreno 840 1.2 GHz
RAM
8 GB
16 GB
RAM type
LPDDR4X RAM
RAM LPDDR5X
64-bit
Yes
Yes

Rear camera

Resolution
50 Mpx
50 Mpx
Aperture
ƒ/ 1.8
ƒ/ 1.88
Flash
LED
Quad LED
Optical stabilization
No
Yes
Slow motion
Yes, 120 fps
Yes, 960 fps
Features
Digital zoom, Dual camera, Digital image stabilization, Autofocus, Touch focus, Geotagging, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer
UIS, Flicker sensor, Noise reduction, Time-Lapse, 4K Video, 8K Video, Digital zoom, Optical zoom, Triple camera, Digital image stabilization, Optical Stabilization (OIS), Autofocus, Touch focus, Manual focus, Phase detection autofocus (PDAF), Laser autofocus (LAF), Continuous shooting, Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer, RAW, Night Mode
Sensor
Sony IMX921
Pixel size
1.00 µm
Sensor size
1/1.56"

Front camera

Resolution
5 Mpx
32 Mpx
Aperture
ƒ/ 2.2
ƒ/ 2.2
Sensor
GalaxyCore GC32E1
Pixel size
0.70 µm

Battery

Capacity
5600 mAh
7400 mAh
Type
Li-Polymer
Si-Carbon Li-Ion
Fast charge
Yes , 45.0W
Yes , 100.0W
Features
Non-removable
Wireless charging, Reverse charging, Non-removable
Wireless charging
40W Wireless charging

Storage

Capacity
256 GB
256 GB
Type
eMMC 5.1 Storage
UFS Storage 4.1
SD slot
Yes , Independent SD slot
No

Body

Dimensions
76.2 mm 165.7 mm 8.0 mm Print 3D Model
76.8 mm 163.6 mm 8.7 mm Print 3D Model
Weight
196 g
227 g
Materials
Plastic , Glass
Glass , Aluminium
Colors
Blue Pink Green
Blue Gray
Water/dust resistance
IP69
IP68
Usable surface
86 %
90 %

Software

Operating system
Android 15 RealmeUI 6.0 (Android 15)
Android 16 OriginOS 6 (Android 16)
Google services
With Google Mobile Services
Without Google Mobile services
Updates
OS updates: 5 years, Security updates: 5 years

Connectivity

SIM
Dual SIM Dual Standby (Nano SIM + Nano SIM)
Dual SIM Dual Standby (Nano SIM + Nano SIM)
Bluetooth
Bluetooth 5.0 LELow energy consumption
Bluetooth 5.4 LELow energy consumption
Bluetooth profiles
A2DP (Advanced Audio Distribution Profile), EDR (Enhanced Data Rate), HID (Human Interface Profile), LE (Low Energy), LDAC, SBC, AAC
A2DP (Advanced Audio Distribution Profile), LE (Low Energy), APT-x, LDAC, SBC, AAC
Wi-Fi
802.11a , 802.11b , 802.11g , 802.11n , 802.11n 5GHz , 802.11ac
802.11a , 802.11b , 802.11g , 802.11n , 802.11n 5GHz , 802.11ac, WiFi 6 (802.11ax) , WiFi 7 (802.11be)
Wi-Fi features
Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display
Dual band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display, Wi-Fi MiMO
USB
USB Type-C
USB Type-C
USB features
Charging, OTG
Charging, OTG
Navigation
GPS, A-GPS, GLONASS, Beidou, QZSS, Galileo
GPS, A-GPS, GLONASS, Beidou, QZSS, Galileo, GPS (L1+L5), BeiDou (B1), Galileo (E1+E5a), BeiDou (B2), QZSS (L1 + L5), Galileo (E1+E5a+E5b)

Networks

4G LTE
B1 (2100), B2 (1900), B3 (1800), B4 (1700/2100 AWS 1), B5 (850), B7 (2600), B8 (900), B13 (700), B20 (800), B26 (850), B28b (700), B28a (700), B38 (TDD 2600), B40 (TDD 2300), B41 (TDD 2500), B66 (1700/2100)
B1 (2100), B2 (1900), B3 (1800), B4 (1700/2100 AWS 1), B5 (850), B7 (2600), B8 (900), B12 (700), B17 (700), B18 (800), B19 (800), B20 (800), B25 (1900+), B26 (850), B28b (700), B28a (700), B32 (1500), B34 (TDD 2100), B38 (TDD 2600), B39 (TDD 1900), B40 (TDD 2300), B41 (TDD 2500), B42 (TDD 3500), B43 (TDD 3700), B48 (TDD 3600), B66 (1700/2100)
3G
B1 (2100), B2 (1900), B4 (1700/2100 AWS A-F), B5 (850), B8 (900)
B1 (2100), B2 (1900), B4 (1700/2100 AWS A-F), B5 (850), B6 (800), B8 (900), B19 (800)
2G
B2 (1900), B3 (1800), B5 (850), B8 (900)
B2 (1900), B3 (1800), B5 (850), B8 (900)
5G
n1 (2100), n2 (1900 PCS), n3 (1800), n5 (850), n7 (2600), n8 (900), n12 (700), n18 (850), n20 (800), n25 (1900), n26 (850), n28b (700), n28a (700), n38 (2600), n40 (2300), n41 (2500), n48 (3500), n66 (1700), n75 (1500), n77 (3700), n78 (3500), n80 (1800), n81 (900), n83A (700), n83B (700), n84 (2100)

Sensors & security

Fingerprint
Yes, on the side
Yes, in screen
Accelerometer
Yes
Yes
Proximity
Yes
Yes
Light sensor
Yes
Yes
Cooling system
No
Yes
Audio
DTS / DTS X, Stereo Speakers
Stereo Speakers

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