Oppo Find X9 Ultra vs Samsung Galaxy S21 FE 5G

[ VERDICT ] Winner: Oppo Find X9 Ultra (96/100)

Oppo Find X9 Ultra leads overall with a score of 96/100 compared to Samsung Galaxy S21 FE 5G (59/100), offering superior measured performance and technical specifications.

Benchmark Performance Comparison

Normalized Lab Scores
Benchmark measurements and scores across compared devices
Benchmark Oppo Find X9 Ultra Samsung Galaxy S21 FE 5G
Gaming 96.0 Excellent WINNER 26.0 Poor
NanoReview Score 96.0 Excellent WINNER 59.0 Below Average
Performance 99.0 Excellent WINNER 51.0 Below Average

Detailed Technical Specifications

Battery

Battery specifications comparison
Specification Oppo Find X9 Ultra Samsung Galaxy S21 FE 5G
Battery type Silicon-Carbon (Si/C) Li-Ion
Bypass charging Yes No
Capacity 7050 mAh 4500 mAh
Fast charging Yes (75% in 30 min) Yes (51% in 30 min)
Full charging time 0:45 hr 1:15 hr
Gaming 08:23 hr 04:48 hr
Max charge power 100 W 25 W
Replaceable No No
Reverse charging Yes, (wireless) Yes, (wireless)
Standby 144 hr 100 hr
Watching video 26:15 hr 11:05 hr
Web browsing 16:45 hr 06:11 hr
Wireless charging Yes (50 W) Yes (15 W)

Benchmarks

Benchmarks specifications comparison
Specification Oppo Find X9 Ultra Samsung Galaxy S21 FE 5G
CPU 1184661 415282
Compute Score (GPU) 27916 4514
GPU 1577144 207688
Memory 509054 174461
Multi-core score 10744 3173
Single-core score 3536 1481
Total score 4231988 1138928
UX 961129 341497
Data manipulation 10563
Graphics score 390
Graphics test 3 FPS
Photo editing 28743
Stability 71%
Video editing 7043
Web score 13606
Writing score 14216

Connectivity

Connectivity specifications comparison
Specification Oppo Find X9 Ultra Samsung Galaxy S21 FE 5G
2G network GSM 850/900/1800/1900MHz GSM GSM850, GSM900, DCS1800, PCS1900
3G network WCDMA 1/2/4/5/6/8/19 UMTS B1 (2100), B2 (1900), B4(AWS), B5(850), B8 (900)
4G network LTE 1/2/3/4/5/7/8/12/13/17/18/19/20/25/26/28/32/66/71 LTE B1(2100), B2(1900), B3(1800), B4(AWS), B5(850), B7(2600), B8(900), B12(700), B13(700), B17(700), B18(800), B19(800), B20(800), B25(1900), B26(850), B28(700), B32(1500), B66(AWS-3), B38(2600), B39(1900), B40(2300), B41(2500)
5G support Yes Yes
Bluetooth features LE LE
Bluetooth version 6.0 5
DisplayPort Yes
GPS GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC GPS, GLONASS, Beidou, Galileo
Hybrid slot No No
Infrared port Yes No
Multi SIM mode Standby Standby
NFC* Yes Yes
Number of SIM* 2 2
Type of SIM card Nano Nano
USB features - Charging- USB-Storage mode- OTG - Charging- USB-Storage mode- OTG
USB type USB Type-C USB Type-C
USB version 3.2 3.2
Wi-Fi features - Dual Band- Wi-Fi MiMO- Wi-Fi Direct- Wi-Fi Hotspot- Wi-Fi Display - Dual Band- Wi-Fi MiMO- Wi-Fi Direct- Wi-Fi Hotspot- Wi-Fi Display
Wi-Fi standard Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) Wi-Fi 6 (802.11 a/b/g/n/ac/ax)
eSIM support* Yes No
LTE Cat* 19

Design and build

Design and build specifications comparison
Specification Oppo Find X9 Ultra Samsung Galaxy S21 FE 5G
Advanced cooling Vapor chamber
Colors White, Green, Orange White, Gray, Green, Purple
Fingerprint scanner Yes, in-display Yes, in-display
Frame material Metal Metal
Height 163.16 mm (6.42 inches) 155.7 mm (6.13 inches)
Rear material Glass Plastic
Thickness 8.65 mm (0.34 inches) 7.9 mm (0.31 inches)
Waterproof IP69 IP68
Weight 235 g (8.29 oz) 177 g (6.24 oz)
Width 76.97 mm (3.03 inches) 74.5 mm (2.93 inches)

Display

Display specifications comparison
Specification Oppo Find X9 Ultra Samsung Galaxy S21 FE 5G
Adaptive refresh rate Yes (1-120 Hz) No
Aspect ratio 19.8:9 19.5:9
Contrast ∞ Infinity ∞ Infinity
Display features - DCI-P3- Always-On Display- DC Dimming - DCI-P3- Always-On Display
HDR support Yes, Dolby Vision Yes, HDR10+
Max rated brightness 1800 nits 800 nits
Max rated brightness in HDR 3600 nits 1200 nits
PPI 510 ppi 403 ppi
PWM 90 Hz 247 Hz
RGB color space 99.5% 97%
Refresh rate 144 Hz 120 Hz
Resolution 1440 x 3168 pixels 1080 x 2340 pixels
Response time 1 ms 6 ms
Screen protection Gorilla Glass Victus 2 Gorilla Glass Victus
Screen-to-body ratio 90% 86.7%
Size 6.82 inches 6.4 inches
Touch sampling rate 300 Hz
Type AMOLED Dynamic AMOLED

DxOMark main camera tests

DxOMark main camera tests specifications comparison
Specification Oppo Find X9 Ultra Samsung Galaxy S21 FE 5G
Bokeh 185
Samples Photo samples of Oppo Find X9 Ultra from DxOMark Photo samples of Samsung Galaxy S21 FE 5G from DxOMark

Main camera

Main camera specifications comparison
Specification Oppo Find X9 Ultra Samsung Galaxy S21 FE 5G
1080p video recording Up to 240FPS Up to 60FPS
4K video recording Up to 120FPS Up to 60FPS
8K video recording Up to 30FPS No
Angle of widest lens 120° 123°
Aperture f/1.5 f/1.8
Autofocus Phase autofocus Phase autofocus (Dual Pixel)
Camera features - Bokeh mode- Pro mode - Bokeh mode- Pro mode
Flash LED LED
Focal length 23 mm 26 mm
Image resolution 16320 x 12240 4032 x 3024
Lenses 1) Standard: 200 MP2) Telephoto: 200 MP3) Telephoto: 50 MP4) Ultrawide: 50 MP 1) Standard: 12 MP2) Telephoto: 8 MP3) Ultrawide: 12 MP
Matrix 200 megapixels 12 megapixels
Pixel size 0.7 micron 1.8 micron
Sensor Sony LYTIA-901 Sony IMX555
Sensor size 1/1.12" (≈ 0.89 inch) 1/1.76" (≈ 0.57 inch)
Slow motion 480 FPS (720p) 960 FPS (720p)
Stabilization Optical Optical
Zoom Optical, 10x Optical, 3x

Memory

Memory specifications comparison
Specification Oppo Find X9 Ultra Samsung Galaxy S21 FE 5G
Channels 4 4
Memory card No No
Memory clock 5300 MHz 3200 MHz
Memory type LPDDR5X LPDDR5
RAM size 12 GB 6 GB
Storage size 256 GB 128 GB
Storage type UFS 4.1 UFS 3.1

Other

Other specifications comparison
Specification Oppo Find X9 Ultra Samsung Galaxy S21 FE 5G
Announced April 2026 January 2022
Bundled charger Not included Not included
Category Flagship Flagship
Launch price (MSRP) $1299 $790
Release date May 2026 January 2022
Sensors - Proximity sensor- Gyroscope- Accelerometer- Ambient light sensor- Compass- Fingerprint - Hall-effect sensor- Barometer- Proximity sensor- Gyroscope- Accelerometer- Ambient light sensor- Compass- Fingerprint
SAR (body) 1.48 W/kg
SAR (head) 0.95 W/kg
Successor -Samsung Galaxy S25 FE

Performance

Performance specifications comparison
Specification Oppo Find X9 Ultra Samsung Galaxy S21 FE 5G
Architecture - 6 cores at 3.63 GHz: Oryon Gen 3 Performance- 2 cores at 4.61 GHz: Oryon Gen 3 Prime - 4 cores at 1.8 GHz: Kryo 680 Silver (Cortex-A55)- 3 cores at 2.42 GHz: Kryo 680 Gold (Cortex-A78)- 1 core at 2.84 GHz: Kryo 680 Prime (Cortex-X1)
CPU cores 8 (2 + 6) 8 (1 + 3 + 4)
Chipset Qualcomm Snapdragon 8 Elite Gen 5 Qualcomm Snapdragon 888
FLOPS ~3686.4 GFLOPS ~1290.2 GFLOPS
GPU clock 1200 MHz 840 MHz
GPU shading units 1536 768
Graphics Adreno 840 Adreno 660
L3 cache 12 MB 4 MB
Lithography process 3 nanometers 5 nanometers
Manufacturing TSMC Samsung
Max clock 4600 MHz 2840 MHz
Neural processor (NPU) Hexagon Hexagon 780

Recent User Tests

Recent User Tests specifications comparison
Specification Oppo Find X9 Ultra Samsung Galaxy S21 FE 5G
Date Benchmark Benchmark
📘 2026-07-05(ak26ru) AnTuTu
📘 2026-07-15(IlyaLub) AnTuTu
📘 2026-07-19(KY.w) GeekBench GPU
📘 2026-07-21(IlyaLub) AnTuTu
📘 2026-04-05(Nesquik) AnTuTu
📘 2026-04-14(Magnum) AnTuTu
📘 2026-04-18(SerhijHig) AnTuTu
📘 2026-05-10(Alican TuTu) AnTuTu
📘 2026-05-10->AlicanTuTu AnTuTu
📘 2026-07-06(Puzatik) AnTuTu
📘 2026-07-21(Psycho0Dream) AnTuTu
📘 2026-08-08->AlicanTuTu AnTuTu

Selfie camera

Selfie camera specifications comparison
Specification Oppo Find X9 Ultra Samsung Galaxy S21 FE 5G
Depth sensor (TOF 3D) No No
Megapixels 50 megapixels 32 megapixels
Video resolution 2160p (4K) at 60 FPS 2160p (4K) at 60 FPS

Software

Software specifications comparison
Specification Oppo Find X9 Ultra Samsung Galaxy S21 FE 5G
OS size 31.6 GB 17.5 GB
OS updates 5 years 4 years
Operating system Android 16 Android 12 (Can be upgraded to Android 16)
ROM ColorOS 16 One UI 8.0
Security updates 6 years 5 years

Sound

Sound specifications comparison
Specification Oppo Find X9 Ultra Samsung Galaxy S21 FE 5G
Dolby Atmos No Yes
FM radio No No
Headphone audio jack No No
Speakers Stereo Stereo

Looking for More Comparisons?

Browse all available head-to-head comparisons or select new devices in the comparison hub.

Browse Smartphones Comparisons → Launch Full Comparison Hub →