Xiaomi Poco F8 Ultra vs Vivo iQOO 15 Ultra

Here we compared two flagship smartphones: the 6.9-inch Xiaomi Poco F8 Ultra (with Qualcomm Snapdragon 8 Elite Gen 5) that was released on November 26, 2025, against the Vivo iQOO 15 Ultra, which is powered by the same chip and came out 2 months after. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.

Select the amount of RAM to evaluate performance and value for money more precisely
Memory

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Xiaomi Poco F8 Ultra
  • Delivers 130% higher peak brightness (3543 against 1541 nits)
  • The rear camera has a 5x optical zoom
  • Slow-motion recording at 1920FPS
Reasons to consider the Vivo iQOO 15 Ultra
  • Comes with 900 mAh larger battery capacity: 7400 vs 6500 mAh
  • Higher display refresh rate – 144 Hz
  • Has 33% more RAM: 16GB versus 12GB
  • Waterproof body (IP69 classification)
  • 19% better performance in AnTuTu Benchmark (4602K versus 3862K)
  • 22% higher pixel density (508 vs 416 PPI)

Review

Evaluation of Xiaomi Poco F8 Ultra and Vivo iQOO 15 Ultra crucial features
Display
Screen quality, color accuracy, brightness
Camera
Photo and video recording quality
Performance
CPU and memory performance (apps, system)
Gaming
Capabilities for playing modern games
Battery
Battery life, charging type and speed
Connectivity
Networks, ports, data transmission
Scores with a red asterisk (*) are approximate and may change in the future as we gather more data.
NanoReview Score
Final comparison evaluation
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πŸ“± Primary usage:

Value for money (Beta)

To get an accurate value-for-money index, update the default prices with actual prices from your country’s retailers (for the selected memory configs) and press the "Calculate" button.
Currency
12 / 256 GB
VS
16 / 256 GB
48.5
(Average)
Value Index
62.9
(Average)

Tests and specifications

Comparison table of technical specifications and tests

Display

Type AMOLED AMOLED
Size 6.9 inches 6.85 inches
Resolution 1200 x 2608 pixels 1440 x 3168 pixels
Aspect ratio 19.5:9 19.8:9
PPI 416 ppi 508 ppi
Refresh rate 120 Hz 144 Hz
Adaptive refresh rate Yes (60-120 Hz) Yes
Max rated brightness 2000 nits 2600 nits
Max rated brightness in HDR 3500 nits 8000 nits
HDR support Yes, Dolby Vision Yes, HDR10+
Touch sampling rate 480 Hz 475 Hz
Screen protection Poco Shield Glass Tempered glass
Screen-to-body ratio 91.9% 90.7%
Display features - DCI-P3
- Always-On Display
- DC Dimming
- DCI-P3
- Always-On Display
- DC Dimming
Display tests
RGB color space 99.6% 100%
PWM 120 Hz 120 Hz
Response time 1 ms 1 ms
Contrast ∞ Infinity ∞ Infinity
Peak brightness test (auto)
3543 nits
1541 nits
Sources: NotebookCheck [3], [4]

Design and build

Height 163.33 mm (6.43 inches) 163.65 mm (6.44 inches)
Width 77.82 mm (3.06 inches) 76.8 mm (3.02 inches)
Thickness 7.9 mm (0.31 inches) 8.7 mm (0.34 inches)
Weight 218 g (7.69 oz) 227 g (8.01 oz)
Waterproof IP68 IP69
Advanced cooling Vapor chamber Active fan
Rear material - Glass
Frame material Metal Metal
Colors White, Black, Blue Black, Silver
Fingerprint scanner Yes, in-display Yes, in-display
Repairability Average (2.63/5) -
Drop resistance Excellent (A) Β· 270 drops -
Screen-to-body ratio
91.9%

Performance

Chipset specifications of Xiaomi Poco F8 Ultra and Vivo iQOO 15 Ultra
SoC
Chipset Qualcomm Snapdragon 8 Elite Gen 5 Qualcomm Snapdragon 8 Elite Gen 5
Max clock 4600 MHz 4610 MHz
CPU cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6 cores at 3.63 GHz: Oryon Gen 3 Performance
- 2 cores at 4.74 GHz: Oryon Gen 3 Prime
- 6 cores at 3.63 GHz: Oryon Gen 3 Performance
- 2 cores at 4.74 GHz: Oryon Gen 3 Prime
L3 cache 12 MB 12 MB
Manufacturing TSMC TSMC
Lithography process 3 nanometers 3 nanometers
Neural processor (NPU) Hexagon Hexagon
GPU
Graphics Adreno 840 Adreno 840
GPU shading units 1536 1536
GPU clock 1300 MHz 1300 MHz
FLOPS ~3993.6 GFLOPS ~3993.6 GFLOPS

Benchmarks

Benchmark comparison of Xiaomi Poco F8 Ultra and Vivo iQOO 15 Ultra
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
11366
Compute Score (GPU)
27924
Compute Score (GPU) 27501 27924
Single-core score 3604 3615
Multi-core score 10752 11366
Sources: Geekbench [3], [4]
AnTuTu Benchmark 11
3862914
4602290
CPU 1113289 1102292
GPU 1452771 1604604
Memory 507250 789150
UX 789604 1106244
Total score 3862914 4602290
Samples [36 tests] [3 tests]
3DMark Steel Nomad Light
Stability - 68%
Graphics test - 23 FPS
Graphics score - 3081
3DMark Solar Bay
Graphics test - 54 FPS
Section 1 - 60 FPS
Section 2 - 55 FPS
Section 3 - 46 FPS
Graphics score - 14183
Sources: 3DMark [5]
PCMark 3.0
Web score - 18545
Video editing - 6849
Photo editing - 34832
Data manipulation - 14303
Writing score - 28711
AnTuTu 11 Ranking List (33rd and 11th place)

Recent User Tests

The latest benchmark tests that have been submitted by users
Xiaomi Poco F8 Ultra
DateBenchmarkResult
πŸ“˜ 2026-09-22 -> ChubzueyAnTuTu 124214043
πŸ“˜ 2026-09-13 -> ChubzueyAnTuTu 124143093
πŸ“˜ 2026-09-04 (Bestiqooguyidk)AnTuTu 113812038
πŸ“˜ 2026-08-27 (Miguelmangake)Geekbench 6 GPU24095
πŸ“˜ 2026-08-27 (Miguelmangake)Geekbench 6 CPU3549 / 10648
Vivo iQOO 15 Ultra
DateBenchmarkResult
πŸ“˜ 2026-08-30 (NPT)Geekbench 6 CPU3568 / 11293
πŸ“˜ 2026-04-04 (Khamidovv)AnTuTu 114602290
πŸ“˜ 2026-04-04 (Khamidovv)AnTuTu 114651882
πŸ“˜ 2026-02-08 (z strikes again)AnTuTu 114314224

Memory

RAM
RAM size 12 GB 16 GB
Memory type LPDDR5X LPDDR5X
Memory clock 5300 MHz -
Channels 4 4
Storage
Storage size 256 GB 256 GB
Storage type UFS 4.1 UFS 4.1
Memory card No No

Software

Operating system Android 16 Android 16
ROM HyperOS 3 OriginOS 6
OS size 36 GB 96 GB
OS updates 4 years 5 years
Security updates 6 years 5 years

Battery

Capacity 6500 mAh 7400 mAh
Max charge power 100 W 100 W
Battery type Silicon-Carbon (Si/C) Silicon-Carbon (Si/C)
Replaceable No No
Wireless charging Yes (50 W) Yes (40 W)
Reverse charging Yes, (wireless) Yes, (wireless)
Bypass charging No Yes
Fast charging Yes (78% in 15 min) Yes (50% in 24 min)
Full charging time 0:39 hr 1:06 hr
Battery cycles 1000 cycles -
Battery life tests
Web browsing 15:14 hr -
Watching video 22:44 hr -
Gaming 08:06 hr -
Standby 124 hr -
General battery life

Main camera

Matrix 50 megapixels 50 megapixels
Image resolution 8192 x 6144 8192 x 6144
Zoom Optical, 5x Optical, 3x
Flash Dual LED Dual LED
Stabilization Optical Optical
8K video recording Up to 30FPS Up to 30FPS
4K video recording Up to 60FPS Up to 60FPS
1080p video recording Up to 60FPS Up to 60FPS
Slow motion 1920 FPS (720p) 240 FPS (1080p)
Angle of widest lens 102Β° 107Β°
Lenses 1) Standard: 50 MP
2) Telephoto: 50 MP
3) Ultrawide: 50 MP
1) Standard: 50 MP
2) Telephoto: 50 MP
3) Ultrawide: 50 MP
Camera features - Bokeh mode
- Pro mode
- RAW support
- Bokeh mode
- Pro mode
- RAW support
Standard lens
Image resolution 50 MP 50 MP
Aperture f/1.7 f/1.9
Focal length 23 mm 23 mm
Sensor Omnivision Light Hunter 950 Sony IMX921
Sensor size 1/1.31" (β‰ˆ 0.76 inch) 1/1.56" (β‰ˆ 0.64 inch)
Pixel size 1.2 micron 1 micron
Autofocus Phase autofocus (Dual Pixel) Phase autofocus
Stabilization Optical Optical
Telephoto lens
Image resolution 50 MP 50 MP
Aperture f/3.0 f/2.7
Focal length 115 mm 85 mm
Sensor Samsung S5KJN5 Sony IMX882
Sensor size 1/2.76" (β‰ˆ 0.36 inch) 1/1.95" (β‰ˆ 0.51 inch)
Pixel size 0.64 micron 0.8 micron
Stabilization Optical Optical
Ultra-wide lens
Image resolution 50 MP 50 MP
Aperture f/2.4 f/2.1
Focal length 18 mm 15 mm
Sensor OmniVision OV50M40 -
Sensor size 1/2.88" (β‰ˆ 0.35 inch) 1/2.76" (β‰ˆ 0.36 inch)
Pixel size 0.61 micron 0.64 micron
Stabilization Digital Digital

Selfie camera

Megapixels 32 megapixels 32 megapixels
Image resolution - 6528 x 4896
Aperture f/2.2 f/2.2
Focal length 21 mm 21 mm
Sensor OmniVision OV32D CMOS
Sensor size 1/3.44" (β‰ˆ 0.29 inch) 1/3.1" (β‰ˆ 0.32 inch)
Pixel size 0.64 micron 0.7 micron
Autofocus No No
Stabilization Digital Digital
Video resolution 2160p (4K) at 30 FPS 2160p (4K) at 60 FPS
Depth sensor (TOF 3D) No No

Connectivity

Wi-Fi standard Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be)
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
Bluetooth version 6.0 6.0
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 3.2 3.2
USB features - Charging
- USB-Storage mode
- OTG
- Charging
- USB-Storage mode
- OTG
DisplayPort Yes Yes
GPS GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC GPS, GLONASS, Beidou, Galileo, QZSS
NFC* Depends on the region Yes
Infrared port Yes Yes
Network
Number of SIM* 2 2
Type of SIM card Nano Nano
Multi SIM mode Standby Standby
eSIM support* Yes Yes
Hybrid slot No No
5G support Yes Yes

Sound

Speakers 2.1 Stereo
Headphone audio jack No No
FM radio No No
Dolby Atmos Yes Yes
Speakers test
Max loudness
89.6 dB
91.18 dB

Other

Category Flagship Flagship
Announced November 2025 February 2026
Release date November 2025 February 2026
Launch price (MSRP) $729 $849
Sensors - Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
Bundled charger Yes, 100 W Yes, 100 W
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

If the display and battery life are more important to you, then choose the Vivo iQOO 15 Ultra. But if the software and design are more of a priority – go for the Xiaomi Poco F8 Ultra.

Cast your vote

So, which phone would you choose?
47 (39.2%)
73 (60.8%)
Total votes: 120

User opinions

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