Home Phone comparison Oppo Reno 15 and Vivo X300 Ultra - Which is better?

Oppo Reno 15 vs Vivo X300 Ultra

75 out 100
Oppo Reno 15
VS
94 out 100
Vivo X300 Ultra
Oppo Reno 15
Vivo X300 Ultra

Compared 2 smartphones : Oppo Reno 15 Manufactured in January, 2026, with display 6.59 with chipsetQualcomm Snapdragon 7 Gen 4, vs Vivo X300 Ultra, Manufactured in April, 2026 with chipsetQualcomm Snapdragon 8 Elite Gen 5. 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 Oppo Reno 15
  • Lighter design: 197g vs 232g
  • Built-in eSIM
Reasons to choose Vivo X300 Ultra
  • Larger display: 6.82in
  • Higher pixel density: 510ppi
  • Higher refresh rate: 144Hz
  • Higher battery capacity: 6600mAh vs 6500mAh
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Supports Dolby Atmos

Versions

Available versions and configurations
Memory Options - 8/256 GB
- 8/512 GB
- 12/256 GB
- 12/512 GB
- 16/256 GB
- 16/512 GB
- 16/1024 GB		 - 12/256 GB
- 12/512 GB
- 16/512 GB
- 16/1024 GB

Review

Key Specs Oppo Reno 15 and Vivo X300 Ultra
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.
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Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison
Smartphones:
Oppo Reno 15
vs
Vivo X300 Ultra

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.59 in 6.82 in
Resolution 1256x2760 pixels 1440x3168 pixels
Aspect ratio 20:9 19.8:9
Pixel density 460 ppi 510 ppi
Refresh rate 120 Hz 144 Hz
Adaptive refresh rate Yes (60-120 Hz) Yes
Max brightness 600 nits 1800 nits
HDR support Yes, HDR10+ Yes, Dolby Vision
Screen-to-body ratio 88.5 % 90.3 %
Features - DCI-P3
- Always-On Display
- DC dimming		 - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Oppo Reno 15
1312 nits
Vivo X300 Ultra
n/a

Design & Build

Design and ergonomics comparison
Height 158.3 mm (6.23 in) 162.98 mm (6.42 in)
Width 74.83 mm (2.95 in) 76.81 mm (3.02 in)
Thickness 7.77 mm (0.31 in) 8.49 mm (0.33 in)
Weight 197 g (6.95 oz) 232 g (8.18 oz)
Water resistance IP69 IP69
Cooling system Vapor chamber Vapor chamber
Back panel Glass Glass
Frame Metal Metal
Colors - White
- Blue		 - Black
- Silver
- Green
Fingerprint sensor Yes, In-Display Yes, In-Display
Screen-to-body ratio
Oppo Reno 15
88.5 %
Vivo X300 Ultra
90.3 %

Performance

Testing Oppo Reno 15 and Vivo X300 Ultra In benchmarks
Processor
Chipset Qualcomm Snapdragon 7 Gen 4 Qualcomm Snapdragon 8 Elite Gen 5
Max Frequency 2800 MHz 4600 MHz
CPU Cores 8 (1 + 4 + 3) 8 (2 + 6)
Architecture - 3/1.84 (Kryo Silver (Cortex-520))
- 4/2.4 (Kryo Gold (Cortex-720))
- 1/2.8 (Kryo Prime (Cortex-720))		 - 6/3.63 (Oryon Gen 3 Performance)
- 2/4.61 (Oryon Gen 3 Prime)
Process TSMC TSMC
Transistor Size 4 nm 3 nm
Neural Processor Yes Hexagon
GeekBench v6
Geekbench 6 (Single-Core)
Oppo Reno 15
1270
Vivo X300 Ultra
3621
Geekbench 6 (Multi-Core)
Oppo Reno 15
4106
Vivo X300 Ultra
10653
Geekbench 6 (Single-Core)12703621
Geekbench 6 (Multi-Core)410610653
Sources: Geekbench v6 [Oppo Reno 15], [Vivo X300 Ultra]
AnTuTu 10
AnTuTu 10
Oppo Reno 15
1394716
Vivo X300 Ultra
4247433
CPU4810181192014
GPU3279871543938
Memory249030525105
UX336681986376
NanoReview Score13947164247433

Memory

RAM
RAM Size 8 GB 12 GB
Memory Type LPDDR5X LPDDR5X
Memory Frequency n/a 5333 MHz
Channels 4 4
Storage
Storage Capacity256 GB256 GB
Storage TypeUFS 3.1UFS 4.1
Memory CardNoNo

Software

OS Android 16 Android 16
UI Skin ColorOS 16 OriginOS 6

Battery

Volume 6500 mAh 6600 mAh
Max Charging Power 80 W 100 W
Battery Type Silicon Carbon (Si/C) Silicon Carbon (Si/C)
Removable No No
Wireless Charging No Yes (40 W)
Reverse Charging Yes Yes
Fast Charging Yes (68% in 30 min) Yes
Full Charge Time 0:57 h n/a
Battery Life Test
Battery Life
Oppo Reno 15
29:05
Vivo X300 Ultra
n/a
Web Browsing11:50 hn/a
Video Playback17:46 hn/a
Games06:35 hn/a
Standby Mode139 hn/a

Main camera

Matrix 50 MP 200 MP
Photo resolution 8192x6144 pixels n/a
Zoom Optical, 3.5x Optical, 3.7x
Flash LED Dual LED
Stabilization Optical Optical
8K Recording No Yes (Up to 30 fps)
4K Recording Yes (Up to 60 fps) Yes (Up to 120 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 120 fps (1080p) 240 fps (1080p)
Wide-angle lens 116 ° 116 °
Lenses count Standard: 50 MP
Telephoto: 50 MP
Ultra-wide: 8 MP		 Standard: 200 MP
Telephoto: 200 MP
Ultra-wide: 50 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix50 MP200 MP
Aperturef/1.8f/1.9
Focal length26 mm35 mm
SensorSony LYT-600Sony LYT-901
Sensor size1/1.95 (0.51)1/1.12 (0.89)
Pixel size0.8 μm0.7 μm
AutofocusPhase autofocusLaser autofocus
StabilizationOpticalOptical
Telephoto
Matrix50 MP200 MP
Aperturef/2.8f/2.7
Focal length85 mm85 mm
SensorSamsung ISOCELL JN5Samsung ISOCELL HPB
Sensor size1/2.76 (0.36)1/1.4 (0.71)
Pixel size0.64 μm0.56 μm
StabilizationOpticalOptical
Ultra-wide lens
Matrix8 MP50 MP
Aperturef/2.2f/2.0
Focal length15 mm14 mm
SensorOmniVision OV08DSony LYT-818
Sensor size1/4.0 (0.25)1/1.28 (0.78)
Pixel size1.12 μm1.22 μm
StabilizationDigitalOptical

Front camera

Matrix 50 MP 50 MP
Photo resolution 8192x6144 pixels 8192x6144 pixels
Aperture f/2.0 f/2.5
Focal length 18 mm 24 mm
Sensor Samsung ISOCELL S5KJN5 Samsung ISOCELL JN1
Sensor size 1/2.76 (0.36) 1/2.76 (0.36)
Pixel size 0.64 μm 0.64 μm
Autofocus Phase autofocus Phase autofocus
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 fps 2160p (4K) at 60 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 6 (802.11 a/b/g/n/ac/ax) 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 5.4 5.4
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 2 3.2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort No Yes
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
NFC* Varies by region Yes
Infrared Port Yes Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *YesNo
Hybrid SlotNoNo
2G BandsGSM 850/900/1800/1900MHzn/a
3G BandsWCDMA 1/2/4/5/8n/a
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B18/B19/B20/B26/B28/B66/B71)n/a
5G SupportYesYes

Sound

3.5 mm Jack No No
FM Radio No No
Dolby Atmos No Yes

Other

Class Mid-range Flagship
Announced January, 2026 yr March, 2026 yr
Release Date January, 2026 yr April, 2026 yr
MSRP ($) 549 1199
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes, 80 W Yes, 80 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Vivo X300 Ultra the clear winner in this comparison.

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