Oppo Find X (128GB) vs Xiaomi 12S Ultra (256GB/12GB)

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Side by side comparison between Oppo Find X vs Xiaomi 12S Ultra phones, differences, pros, cons and full specifications. What's the better?

7/16/2022 3:35 PM, updated: 6/9/2025 11:20 PM

Compare Xiaomi 12S Ultra X Oppo Find X (128GB) 03Points

Specifications Compare Models Pictures

6.42"
AMOLED

1080x2340

16
MP

25mp

8GB
RAM

Octa-core

3730
mAh

(Non removable)

32Points Xiaomi 12S Ultra (256GB/12GB) Compare Oppo Find X X

Specifications Compare Models Pictures

6.73"
AMOLED

1440x3200

50
MP

32mp

12GB
RAM

Octa-core

4860
mAh

(Non removable)

What's the better phone? Xiaomi 12S Ultra (256GB/12GB)

The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!

3 Advantages Oppo Find X (128GB)	vs	32 Advantages Xiaomi 12S Ultra (256GB/12GB)
+186 grams (6.51 ounces)21% Lighter	vs	225 grams (7.88 ounces)
+Face unlock 3DAdvantage Sensors help you use the device	vs	Face unlock 2D
+Proximity sensorAdvantage Sensors help you use the device	vs	Virtual proximity sensor
2.8GHz 64bit Octa-core (10nm)	vs	+3.19GHz 64bit Octa-core (4nm)20% More powerful processor, you can open your applications faster
8GB LPDDR4X	vs	+12GB LPDDR550% More RAM memory. Typically more responsive and better for multitasking.
128GB (110GB available)	vs	+256GB (218GB available)98% More internal storage for applications and files
UFS 2.1	vs	+UFS 3.1Advantage Fastest write and read storage.
9.4 millimeters (0.37 inches)	vs	+9 millimeters (0.35 inches)4% Thinner
Aluminum frame, glass front/back	vs	+Aluminum frame, glass front, leather backAdvantage More resistant material
Not supported	vs	+Dolby Vision/HDR10+Advantage The Dolby Vision/HDR10+ display provides vibrant colors and more details
60Hz	vs	+120Hz100% The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.
16 million	vs	+1 billion62 times More colors on the screen is better quality images and videos
1080x2340 pixels	vs	+1440x3200 pixels82% Higher resolution screen
401 PPI	vs	+521 PPI30% Crisper display of text, images and videos because it has more pixels per inch (ppi)
6.42"	vs	+6.73"5% Larger screen
(dual camera) 16MP + 20MP	vs	+(quad camera) 50MP + 48MP + 48MP + 0.3MP3 times Higher resolution main camera
Only digital zoom	vs	+Digital and optical zoomAdvantage The zoom allows for better focus and approach to take pictures
1/2.6" inches	vs	+1/1" inches160% The larger sensor camera lets you take photos with better depth.
f/2.0 (aperture)	vs	+f/1.9 (aperture)5% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(front) 25MP	vs	+(front) 32MP28% Higher resolution secondary camera to take pictures and selfies
4K UHD (3840x2160)	vs	+8K UHD (7680x4320)3 times More image quality for recording videos with the primary camera
(front) Full HD (1920x1080)	vs	+(front) 4K UHD (3840x2160)3 times More image quality for recording videos with the secondary camera
Android 10	vs	+Android 13Advantage Android 13 is newer and safer
4G LTE-A	vs	+5G SA/NSAAdvantage The 5G SA/NSA network is newer and faster
(4G LTE-A) 1024 Mbps	vs	+(5G SA/NSA) 2000 Mbps95% Faster for surfing the internet and download files
Not supported	vs	+BarometerAdvantage Sensors help you use the device
Not supported	vs	+Fingerprint sensor (under display)Advantage Sensors help you use the device
3730 mAh	vs	+4860 mAh30% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
20W	vs	+67W2 times More power (watts) to charge the battery faster. Sometimes, the charger that comes with the device doesn't have the same power supported by the device. Check before you buy it.
Not supported	vs	+Qi wireless chargingAdvantage Wireless charging is another way to charge the battery.
Mono sound (not stereo)	vs	+Stereo soundAdvantage Better sound quality for listening to music or clearer hands-free calls
802.11 a/b/g/n/ac [wifi5]	vs	+802.11 a/b/g/n/ac/ax [wifi6E/6]Advantage WiFi 802.11 a/b/g/n/ac/ax [wifi6E/6] is newer and faster
Not supported	vs	+DLNAAdvantage With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.
5.0 + A2DP/LE	vs	+5.2 + A2DP/LEAdvantage Bluetooth 5.2 + A2DP/LE is newer and faster
Not supported	vs	+IP68 certifiedAdvantage Protection against water allows you talk to your friends in the rain, for example

24 Common items in both devices

AMOLED

Dual-LED flash

PDAF: phase detection autofocus / LDAF/PDAF: laser/phase detection autofocus

OIS: Optical stabilization

BSI sensor

HDR photo on both cameras / HDR photo/video on both cameras

Capacitive

+17 specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differences

📱 Model features
	Oppo Find X (128GB)	Xiaomi 12S Ultra (256GB/12GB)
Change model		Choose the model
Model	Find X (128GB)	12S Ultra (256GB/12GB)
Other model names	BBK Oppo Find X PAFM00, PAFT00	小米12S Ultra 5G (2203121C) 12GB RAM
Country or region available	(Global, International), China, Hong Kong	(Global, International)
Brand	Oppo	Xiaomi
Release date	7/1/2018	7/9/2022, Announced: 7/4/2022
Depth	9.4 millimeters (0.37 inches)	9 millimeters (0.35 inches)
Size (width x height)	74.2 x 156.7 millimeters (2.92 x 6.17 in)	74.97 x 163.17 millimeters (2.95 x 6.42 in)
Weight	186 grams (6.51 ounces)	225 grams (7.88 ounces)
Build, materials	Aluminum frame, glass front/back Back: Gorilla Glass 5	Aluminum frame, glass front, leather back
Protection against water and others	Not supported	IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant
📲 Display
	Oppo Find X (128GB)	Xiaomi 12S Ultra (256GB/12GB)
Display type	AMOLED	AMOLED
Screen size	6.42" inches	6.73" inches
Screen-to-body ratio	~87% (screen-to-body ratio)	~89.4% (screen-to-body ratio)
Display resolution	1080x2340 pixels (19.5:9)	1440x3200 pixels (20:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch 10-points
Pixel density (dot pitch)	401 PPI	521 PPI
Colors	16 million	1 billion
Scratch-resistant glass	Gorilla Glass 5	Gorilla Glass Victus
Refresh rate	60Hz	120Hz
Display features	Not supported	1000nits[typ], 1500nits[peak] Dolby Vision/HDR10+
🤖 Operating System
	Oppo Find X (128GB)	Xiaomi 12S Ultra (256GB/12GB)
System version	Android 8.1 Oreo	Android 12
Firmware update	Android 10	Android 13
User Interface	ColorOS 5.1 / 7.0	MIUI 13 / 14
⚙️ Processor
	Oppo Find X (128GB)	Xiaomi 12S Ultra (256GB/12GB)
Chipset	64bit: Qualcomm Snapdragon 845 (SDM845) (10nm)	64bit: Qualcomm Snapdragon 8+ Gen 1 (SM8475) (4nm)
CPU	Octa-core, 2 processors: 4x 2.8GHz Kryo 385 Gold (Quad-core) 4x 1.7GHz Kryo 385 Silver (Quad-core)	Octa-core, 3 processors: 1x 3.19GHz ARM Cortex-X2 (Single-core) 3x 2.75GHz ARM Cortex-A710 (Triple-core) 4x 2GHz ARM Cortex-A510 (Quad-core)
GPU graphical controller	Qualcomm Adreno 630 (710MHz)	Qualcomm Adreno 730 (818MHz)
Performance (benchmark)	feature not registered	AnTuTu: 1039412 (v9) Geekbench: 4300 (v5.1) GFXBench: 51fps (ES 3.1 onscreen)
💽 Memory and storage
	Oppo Find X (128GB)	Xiaomi 12S Ultra (256GB/12GB)
RAM memory	8GB LPDDR4X	12GB LPDDR5
Internal storage	128GB (110GB available) UFS 2.1	256GB (218GB available) UFS 3.1
External storage	Not supported	Not supported
📶 Mobile networks
	Oppo Find X (128GB)	Xiaomi 12S Ultra (256GB/12GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card	Dual-SIM Standby - Call active on one sim card
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	1024/150 Mbps	2000/1024 Mbps
Network technology	2G, 3G, 4G	2G, 3G, 4G, 5G
Frequency, bands	Expand band details Collapse details
GSM MHz band	Quad-Band 850/900/1800/1900	Quad-Band 850/900/1800/1900
Primary 2G network	CDMA 800, GSM 850/900/1800/1900	CDMA 800, GSM 850/900/1800/1900
Primary 3G network	CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1700/1900/2100	CDMA2000 1xEV-DO UMTS 800/850/900/1700/1900/2100
Primary 4G network	LTE Cat16 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 32, 66) TD-LTE (34, 38, 39, 40, 41)	LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 26) TD-LTE (34, 38, 39, 40, 41, 42) VoLTE
Primary 5G network	Not supported	SA/NSA (1, 3, 5, 8, 28, 38, 40, 41, 77, 78, 79)
Primary data network	GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A	GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA
Secondary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Secondary 3G network	Not supported	UMTS 800/850/900/1700/1900/2100
Secondary 4G network	Not supported	LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 26) TD-LTE (34, 38, 39, 40, 41, 42) VoLTE
Secondary data network	GPRS, EDGE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA
📷 Camera
	Oppo Find X (128GB)	Xiaomi 12S Ultra (256GB/12GB)
Back camera (main camera)	(dual camera) 16 megapixels 20MP f/2.01/2.8"1.0µm	(quad camera) 50 megapixels 48MP periscope telephoto f/4.1120mm1/2"0.8µmPDAFOIS5x-optical-zoom 48MP ultrawide f/2.213mm128°1/2"0.8µmDual-PixelPDAF 0.3MP TOF 3D depth
Main camera resolution	4608x3456 pixels	8160x6120 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	8K UHD (7680x4320) 24 fps
Flash	Dual-LED flash	Dual-LED flash
Focal aperture	f/2.0 (aperture)	f/1.9 (aperture)
Focal length	feature not registered	23mm (lens)
Sensor size	1/2.6" inches	1/1" inches
Pixel size	1.22µm pixel	1.6µm pixel
Autofocus	PDAF: phase detection autofocus	LDAF/PDAF: laser/phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	OIS: Optical stabilization	OIS: Optical stabilization
Zoom	Only digital zoom	Digital and optical zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Supported	Supported
HDR	HDR photo on both cameras	HDR photo/video on both cameras
Camera extras	feature not registered	4K@60fps 1080p@480fps Sony IMX989 Leica optics
📸 Front camera
	Oppo Find X (128GB)	Xiaomi 12S Ultra (256GB/12GB)
Front camera (secondary)	25 megapixels *Motorized pop-up camera (slider)	32 megapixels
Front camera resolution	5760x4320 pixels	6528x4896 pixels
Video recording (secondary)	Full HD (1920x1080)	4K UHD (3840x2160)
Front flash	Not supported	Not supported
Focal aperture	f/2.0 (aperture)	f/2.4 (aperture)
Focal length	feature not registered	25mm (lens)
Sensor size	feature not registered	feature not registered
Pixel size	feature not registered	0.7µm pixel
🔉 Sound and multimedia
	Oppo Find X (128GB)	Xiaomi 12S Ultra (256GB/12GB)
Loudspeaker	Mono sound (not stereo)	Stereo sound 24-bit/192kHz Tuned by Harman Kardon
Active noise cancellation	2 microphones	2 microphones or more
Radio	Not supported	Not supported
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, DivX, XviD	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, OGG, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Oppo Find X (128GB)	Xiaomi 12S Ultra (256GB/12GB)
USB	USB 2.0 Type-C, USB OTG On-The-Go	USB 2.0 Type-C, USB OTG On-The-Go
Audio output	Type-C reversible connector	Type-C reversible connector
TV output	USB Type-C (reversible)	USB Type-C (reversible)
Bluetooth	5.0 + A2DP/LE	5.2 + A2DP/LE
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot	802.11 a/b/g/n/ac/ax [wifi6E/6] (2.4GHz, 5GHz, 6GHz) + MIMO WiFi Direct, hotspot
DLNA	Not supported	Supported
GPS	A-GPS, GeoTagging, GLONASS, BeiDou	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS, NavIC
NFC	Supported	Supported
Infrared port	Not supported	Supported
🧭 Sensors
	Oppo Find X (128GB)	Xiaomi 12S Ultra (256GB/12GB)
Sensors	Accelerometer Ambient light sensor Compass Face unlock 3D Gyroscope Hall effect Proximity sensor	Accelerometer Ambient light sensor Barometer Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Virtual proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Oppo Find X (128GB)	Xiaomi 12S Ultra (256GB/12GB)
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	3730 mAh	4860 mAh
Charger, watts	20W Wired fast charging VOOC 3.0	67W Wired fast charging Reverse charging by cable Quick Charge 4 USB Power Delivery 3.0
Inductive / wireless charging	Not supported	50W Qi wireless charging 10W Reverse wireless charging
Talk time autonomy	feature not registered	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Oppo Find X (128GB)	Xiaomi 12S Ultra (256GB/12GB)
Call control	Voice dialing, Voice recorder	Voice dialing, Voice recorder, Voice commands
Messaging	SMS (T9), MMS, E-mail, Push mail	SMS (T9), MMS, E-mail, Push mail
Hands-free calling	Supported	Supported
Video calling	Supported	Supported
Ringtones	Polyphonic and customized	Polyphonic and customized
Web browser	HTML, XHTML, HTML5	HTML, XHTML, HTML5
Antenna	Internal antenna	Internal antenna
Qwerty physical keyboard	Not supported	Not supported
Miscellaneous	• Colors: Bordeaux Red, Glacier Blue	• Colors: Black, Dark Green
☢️ Radiation rate
	Oppo Find X (128GB)	Xiaomi 12S Ultra (256GB/12GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	feature not registered	feature not registered