itel S25 Ultra
#2078
Oppo F21 Pro
#2301Category Breakdown
itel S25 Ultra
Oppo F21 Pro
Performance
80.684.1
Camera
36.847.2
Display
91.282.7
Battery
33.730.6
Build
0.20.2
Connectivity
56.557.6
Audio
8.98.9
Overall
52.050.1
Summary
- The itel S25 Ultra features a larger 6.78" AMOLED display with a higher refresh rate of 120Hz and peak brightness of 1400 nits, compared to the 6.43" AMOLED display of the Oppo F21 Pro with a 90Hz refresh rate and peak brightness of 800 nits.
- In terms of performance, the itel is powered by the Unisoc T620 chipset, while the Oppo utilizes the Qualcomm Snapdragon 680, which is more efficient due to its 6nm process.
- The camera system on the itel includes a 50 MP main sensor, whereas the Oppo offers a 64 MP main sensor with additional macro and depth lenses.
- The itel has a larger 5000mAh battery with 18W charging, compared to the Oppo's 4500mAh battery with faster 33W charging.
- Both devices run Android, but the itel comes with Android 14 and itel OS 14.5, while the Oppo initially launched with Android 12 and is upgradable to Android 14 with ColorOS 14.
Side-by-side Specification Comparison
itel S25 Ultra
Oppo F21 Pro
General
Release Date
2024, November 09
2022, April 12
Announced
2024, November 09
2022, April 12
Description
N/A
Also known as Oppo F21s Pro
Display
Size
6.78"
6.43"
Type
AMOLED, 1B colors, 120Hz, 1000 nits (HBM), 1400 nits (peak)
AMOLED, 90Hz, 430 nits (typ), 600 nits (HBM), 800 nits (peak)
Resolution
1080 x 2436 pixels (~393 ppi density)
1080 x 2400 pixels, 20:9 ratio (~409 ppi density)
PPI
1080
1080
Refresh Rate
120Hz
90Hz
HDR Support
✗
✗
Protection
Corning Gorilla Glass 7i
Corning Gorilla Glass 5
Performance
Chipset
Unisoc T620 (12 nm)
Qualcomm SM6225 Snapdragon 680 4G (6 nm)
CPU
Octa-core (2x2.2 GHz Cortex-A75 & 6xX.X GHz Cortex-A55)
Octa-core (4x2.4 GHz Kryo 265 Gold & 4x1.9 GHz Kryo 265 Silver)
GPU
N/A
Adreno 610
Memory
128GB 8GB RAM, 256GB 8GB RAM, 512GB 8GB RAM
128GB 8GB RAM
Expandable Storage
✗
✗
Card Slot
Unspecified
microSDXC
Camera
Main Camera
50 MP, f/1.6, (wide), AFXX MP, (macro)Auxiliary lens
64 MP, f/1.7, 26mm (wide), 1/2.0", 0.7µm, PDAF2 MP, f/3.3, (microscope)2 MP, f/2.4, (depth)
Main Camera Features
LED flash, HDR, panorama
LED flash, HDR, panorama
Front Camera
32 MP, f/2.2, 22mm (wide)
32 MP, f/2.4, 24mm (wide), 1/2.74", 0.8µm
Front Camera Features
N/A
Panorama, HDR
Video Recording
1440p@30fps, 1080p@30fps
1080p@30fps, gyro-EIS
Selfie Video
1440p@30fps, 1080p@30fps
1080p@30fps, gyro-EIS
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
5000 mAh
4500 mAh
Battery Details
5000 mAh
Li-Po 4500 mAh
Charging Details
18W wired, bypass charging
33W wired, 100% in 60 minReverse wired
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
6.9 mm thickness
159.9 x 73.2 x 7.5 mm (6.30 x 2.88 x 0.30 in)
Weight
163 g
175 g
Materials
N/A
N/A
Colors
Bromo Black, Meteor Titanium, Komodo Ocean
Cosmic Black, Sunset Orange, Dawnlight Gold, Starlight Black
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Nano-SIM + Nano-SIM
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE
GSM / HSPA / LTE
Network Speed
HSPA, LTE
HSPA, LTE
5G
✗
✗
4G
✓
✓
WiFi
Yes
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
Yes
5.1, A2DP, LE, aptX HD
NFC
✓
✗
USB
USB Type-C 2.0
USB Type-C 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✗
✓
Radio
✗
✗
Positioning
GPS
GPS, GLONASS, BDS, GALILEO, QZSS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
No
Yes
Software & Security
Operating System
Android 14, up to 2 major Android upgrades, itel OS 14.5
Android 12, upgradable to Android 14, ColorOS 14
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (under display, optical), unspecified sensors
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass