Home Phone comparison Xiaomi 13 Ultra and Oppo Realme C33 - Which is better?

Xiaomi 13 Ultra vs Oppo Realme C33

81 out 100
Xiaomi 13 Ultra
VS
45 out 100
Oppo Realme C33
Xiaomi 13 Ultra
Oppo Realme C33

Compared 2 smartphones : Xiaomi 13 Ultra Manufactured in April, 2023, with display 6.73 with chipsetQualcomm Snapdragon 8 Gen 2, vs Oppo Realme C33, Manufactured in September, 2022 with chipsetUnisoc Tiger T612. Below are specs, tests, pros and cons for each device

  1. Differences
  2. Review
  3. Specs
  4. Benchmarks
  5. Battery Life
  6. Cameras
  7. Comments (0)

Key Differences

Device key advantages
Reasons to choose Xiaomi 13 Ultra
  • Larger display: 6.73in
  • Higher pixel density: 522ppi
  • Higher refresh rate: 120Hz
  • Newer Bluetooth version: 5.3 vs 5
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Supports Dolby Atmos
  • Infrared port
Reasons to choose Oppo Realme C33
  • Lighter design: 187g vs 227g

Versions

Available versions and configurations
Memory Options - 12/256 GB
- 12/512 GB
- 16/512 GB
- 16/1024 GB		 - 3/32 GB
- 4/64 GB
- 4/128 GB

Review

Key Specs Xiaomi 13 Ultra and Oppo Realme C33
Display
Color accuracy, sharpness & brightness
Camera
Main & front camera tests
Performance
App & system performance
Games
3D gaming performance
Battery
Battery life, charging speed & type
Connectivity
Connectivity features
NanoReview Score
Overall score by NanoReview
Adjust each parameter’s importance to find the best match for you.
Customize your score
Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison
Smartphones:
Xiaomi 13 Ultra
vs
Oppo Realme C33

Display

Display quality comparison
Type AMOLED IPS LCD
Size 6.73 in 6.5 in
Resolution 1440x3200 pixels 720x1600 pixels
Aspect ratio 20:9 20:9
Pixel density 522 ppi 270 ppi
Refresh rate 120 Hz 60 Hz
Adaptive refresh rate Yes No
Max brightness 1300 nits 400 nits
HDR support Yes Dolby Vision No
Touch Sampling Rate 240 Hz 120 Hz
Screen-to-body ratio 89.7 % 82.1 %
Features - DCI-P3
- Always-On Display
- DC dimming		 n/a
Display test
Peak brightness (auto)
Xiaomi 13 Ultra
1201 nits
Oppo Realme C33
n/a
sRGB gamut97.4 %n/a
PWM (Flicker)120 Hzn/a
Response time1 msn/a
Contrast∞ Infiniten/a
Sources: NotebookCheck [Xiaomi 13 Ultra]

Design & Build

Design and ergonomics comparison
Height 163.18 mm (6.42 in) 164.2 mm (6.46 in)
Width 74.64 mm (2.94 in) 75.7 mm (2.98 in)
Thickness 9.06 mm (0.36 in) 8.3 mm (0.33 in)
Weight 227 g (8.01 oz) 187 g (6.6 oz)
Water resistance IP68 No
Cooling system Vapor chamber n/a
Back panel Eco Leather Plastic
Frame Metal Plastic
Colors - White
- Black
- Green		 - Gold
- Blue
Fingerprint sensor Yes In-Display Yes In-Button
Screen-to-body ratio
Xiaomi 13 Ultra
89.7 %
Oppo Realme C33
82.1 %

Performance

Testing Xiaomi 13 Ultra and Oppo Realme C33 In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Gen 2 Unisoc Tiger T612
Max Frequency 3200 MHz 1800 MHz
CPU Cores 8 (1 + 2 + 2 + 3) 8 (2 + 6)
Architecture - 3/2 (Cortex-A510)
- 2/2.8 (Cortex-A710)
- 2/2.8 (Cortex-A715)
- 1/3.2 (Cortex-X3)		 - 6/1.8 (Cortex-A55)
- 2/1.8 (Cortex-A75)
Process TSMC TSMC
Transistor Size 4 nm 12 nm
Neural Processor Hexagon n/a
Graphics Adreno 740 Mali-G57 MP1
GPU Cores 1536 32
GPU Frequency 680 MHz 614 MHz
FLOPS 2089 GFLOPS 78.6 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi 13 Ultra
1995
Oppo Realme C33
428
Geekbench 6 (Multi-Core)
Xiaomi 13 Ultra
5419
Oppo Realme C33
1428
Geekbench 6 (Single-Core)1995428
Geekbench 6 (Multi-Core)54191428
Sources: Geekbench v6 [Oppo Realme C33]
AnTuTu 10
AnTuTu 10
Xiaomi 13 Ultra
1524921
Oppo Realme C33
249559
CPU38914086258
GPU59640522575
Memory29701583768
UX24236156958
NanoReview Score1524921249559
3DMark Wild Life
3DMark Wild Life
Xiaomi 13 Ultra
11992
Oppo Realme C33
417
Max Surface Temp.52 °Cn/a
Stability89 %98 %
Graphics Test71 fps2 fps
Graphics Score11992417
Sources: 3DMark [Xiaomi 13 Ultra], [Oppo Realme C33]
PCMark 3.0
PCMark 3.0
Xiaomi 13 Ultra
n/a
Oppo Realme C33
7420
Writing scoren/a9814
Web scoren/a6974
Video editingn/a4641
Data manipulationn/a5574
NanoReview Scoren/a7420

Memory

RAM
RAM Size - 12 GB
- 16 GB		 - 3 GB
- 4 GB
Memory Type LPDDR5X LPDDR4X
Memory Frequency 3200 MHz n/a
Channels 4 2
Storage
Storage Capacity- 256 GB
- 512 GB
- 1024 GB		- 32 GB
- 64 GB
- 128 GB
Storage TypeUFS 4.0UFS 2.2
Memory CardNoMicroSD

Software

OS Android 13 (Upgradeable to Android 14) Android 12
UI Skin HyperOS 1.0 Realme UI S

Battery

Volume 5000 mAh 5000 mAh
Max Charging Power 90 W 10 W
Battery Type Li-Po Li-Po
Removable No No
Wireless Charging Yes (50 W) No
Reverse Charging Yes No
Fast Charging Yes (58% in 15 min) No
Full Charge Time 0:40 h 3:00 h
Battery Life Test
Battery Life
Xiaomi 13 Ultra
23:30
Oppo Realme C33
n/a
Web Browsing09:36 hn/a
Video Playback13:10 hn/a
Games05:28 hn/a
Standby Mode117 hn/a

Main camera

Matrix 503 MP 50 MP
Photo resolution 8192x6144 pixels 8192x6144 pixels
Zoom Optical, 5x Digital
Flash Dual LED LED
Stabilization Optical Digital
8K Recording Up to 24FPS No
4K Recording Yes (Up to 60 fps) No
1080p Recording Yes (Up to 60 fps) Yes (Up to 30 fps)
Slow Motion 1920 fps (1080p) No
Wide-angle lens 122 ° n/a
Lenses count Standard: 50.3 MP
Telephoto: 50 MP
Telephoto: 50 MP
Ultra-wide: 50 MP
Depth		 Standard: 50 MP
Depth: 0.3 MP
Features - Bokeh effect
- Pro mode
- RAW support		 Bokeh effect
Main lens
Matrix503 MP50 MP
Aperturef/1.9 - 4.0f/1.8
Focal length23 mmn/a
SensorSony IMX989n/a
Sensor size1/1n/a
Pixel size1.6 μmn/a
AutofocusLaser autofocusPhase autofocus
StabilizationOpticalDigital
Telephoto
Matrix50 MPn/a
Aperturef/3.0n/a
Focal length120 mmn/a
SensorSony IMX858n/a
Sensor size1/2.51n/a
Pixel size0.64 μmn/a
StabilizationOpticaln/a
Ultra-wide lens
Matrix50 MPn/a
Aperturef/1.8n/a
Focal length12 mmn/a
SensorSony IMX858n/a
Sensor size1/2.51n/a
Pixel size0.64 μmn/a
StabilizationDigitaln/a
Main camera DxOMark results
Photo quality
Xiaomi 13 Ultra
138
Oppo Realme C33
n/a
Video quality
Xiaomi 13 Ultra
137
Oppo Realme C33
n/a
Overall camera score
Xiaomi 13 Ultra
140
Oppo Realme C33
n/a
Bokeh65n/a
Preview72n/a
Zoom147n/a
Sources: DxOMark [Xiaomi 13 Ultra]

Front camera

Matrix 32 MP 5 MP
Photo resolution 6528x4896 pixels 2560x1960 pixels
Aperture f/2.0 f/2.2
Focal length 22 mm 27 mm
Sensor CMOS CMOS
Sensor size 1/3.14 1/5.0
Pixel size 0.7 μm n/a
Autofocus Phase autofocus No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 60 fps 720p at 30 fps
TOF 3D sensor No No
Selfie camera DxOMark results
Photo quality
Xiaomi 13 Ultra
123
Oppo Realme C33
n/a
Video quality
Xiaomi 13 Ultra
137
Oppo Realme C33
n/a

Connectivity

Wi-Fi version Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) Wi-Fi 4 (802.11 a/b/g/n)
Wi-Fi features - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5.3 5
Bluetooth features LE LE, A2DP
USB type USB Type-C Micro USB
USB version 3.2 2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
DisplayPort Yes DP 1.2 n/a
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC		 - GPS
- GLONASS
- Galileo
NFC* Yes Varies by region
Infrared Port Yes No
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM B3 / B5 / B8GSM 850/900/1800/1900
3G BandsWCDMA B1 / B4 / B5 / B6 / B8 / B19WCDMA Bands 1/5/8
LTE Bands*LTE (B1/B3/B4/B5/B7/B8/B12/B17/B18/B19/B26/B34/B38/B39/B40/B41/B42)LTE (B/B1/B3/B5/B8/B38/B40/B41)
LTE category207
5G SupportYesNo

Sound

Speakers Stereo Mono
3.5 mm Jack No Yes
FM Radio No n/a
Dolby Atmos Yes No
Speaker Test
Max Volume
Xiaomi 13 Ultra
89.5 dB
Oppo Realme C33
n/a

Other

Class Flagship Budget
Announced April, 2023 yr September, 2022 yr
Release Date April, 2023 yr September, 2022 yr
Launch Price ($) 1499 140
Sensors - Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Accelerometer
- Ambient Light Sensor
- Fingerprint sensor
Charger Included Yes 90 W Yes 10 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Xiaomi 13 Ultra the clear winner in this comparison.

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