iQOO 15 Ultra vs vivo X300 Pro

Comparing the iQOO 15 Ultra vs vivo X300 Pro across performance, display, camera, battery and storage to help determine the better smartphone.

Here is the summary of the results:

Performance: iQOO 15 Ultra runs at a higher processing speed of 4.61 GHz, while vivo X300 Pro runs at 4.21 GHz, making iQOO 15 Ultra the better performer.

Display: iQOO 15 Ultra offers a screen size of 6.85 inches, while vivo X300 Pro offers 6.78 inches, making iQOO 15 Ultra the larger display of the two. vivo X300 Pro features a AMOLED display compared to iQOO 15 Ultra's LTPO AMOLED, making vivo X300 Pro the better display of the two.

Rear Camera: Both iQOO 15 Ultra and vivo X300 Pro feature a 50 MP primary rear camera.

Front Camera: vivo X300 Pro offers a higher front camera resolution with 50 MP, while iQOO 15 Ultra offers 32 MP, making vivo X300 Pro better for front camera photography.

Battery: vivo X300 Pro delivers longer battery life with 16h 01m, while iQOO 15 Ultra delivers None, making vivo X300 Pro the better pick for all day usage.

Storage: vivo X300 Pro offers higher internal storage with 512 GB, while iQOO 15 Ultra offers 256 GB, making vivo X300 Pro the better option for storage.

iQOO 15 Ultra

(Not Released in India)

vivo X300 Pro

₹109,998

@ Amazon

Summary

Release Date

N/A

10 Dec, 2025

09 Jul, 2026

Performance


Snapdragon 8 Elite Gen 5	MediaTek Dimensity 9500	Snapdragon 7 Gen 4
Octa Core (upto 4.61 GHz)	Octa Core (upto 4.21 GHz)	Octa Core (upto 2.8 GHz)
12 GB RAM	16 GB RAM	8 GB RAM

Display


6.85 inches (17.4 cm)	6.78 inches (17.22 cm)	6.32 inches (16.05 cm)
LTPO AMOLED	AMOLED	AMOLED
1440x3168 px (QHD+)	1260x2800 px (FHD+)	1216x2640 px (FHD+)
144 Hz Refresh Rate	120 Hz Refresh Rate	120 Hz Refresh Rate

Rear Camera


50 MP Wide Angle Primary Camera	50 MP Wide Angle Primary Camera (upto 3.5x Optical Zoom)	50 MP Wide Angle Primary Camera (upto 3.5x Optical Zoom)
50 MP Telephoto Camera (upto 3x Optical Zoom)	50 MP Ultra-Wide Angle Camera	50 MP Ultra-Wide Angle Camera
50 MP Ultra-Wide Angle Camera	200 MP Telephoto Camera (upto 3.5x Optical Zoom)	50 MP Telephoto Camera (upto 3.5x Optical Zoom)

Front Camera


32 MP Wide Angle Lens	50 MP Wide Angle Lens	50 MP Wide Angle Lens

Battery


7400 mAh	6510 mAh	6700 mAh
100W	90W Flash Charging	80W Super VOOC Charging
Wireless Charging	Wireless Charging	Wireless Charging

Storage

256 GB	512 GB	256 GB
UFS 4.1	UFS 4.1	UFS 3.1

Expert Review

N/A

8.6/10

Read Expert Review

8.1/10

Read Expert Review

Pros

Device yet to be reviewed

Terrific primary and telephoto cameras
Optional ZEISS extender adds real creative range
Excellent battery life and fast charging
Smooth performance with refined OriginOS

Impressive cameras
Standout design
Interesting AI features

Cons

Device yet to be reviewed

Speakers lack clarity and depth
Runs slightly warm under stress

Pricey
Chipset could be better

User Ratings

N/A

4.7/5

(791 ratings)

N/A

Benchmarks (The higher, the better)

N/A	3,536,552 AnTuTu Score	1,457,989 AnTuTu Score
N/A	16h 01m Battery Life (PC Mark)	23h 00m Battery Life (PC Mark)

Compare Prices

Not Available in any store

₹109,998

@ Amazon

₹61,999

@ Amazon

Video

There are no videos available for the device.

2 More Videos

There are no videos available for the device.

User Feedback

General

Launch Date

N/A

Dec 02, 2025

(Official)

Jul 02, 2026

(Official)

Operating System

Android v16

OS Updates

5 Years

5 Year

N/A

Security Updates

N/A

7 Year

N/A

Custom UI

Origin OS

ColorOS

Performance

Performance Rating

Best In Class

Very Good

Chipset

Qualcomm Snapdragon 8 Elite Gen 5 SM8850-AC

MediaTek Dimensity 9500

Qualcomm Snapdragon 7 Gen 4

Processor

Octa core

4.61 GHz, Dual core, Oryon 3.63 GHz, Hexa Core, Oryon

Octa core

4.21 GHz, Single core, Arm C1-Ultra 3.5 GHz, Tri core, ARM C1-Premium 2.7 GHz, Quad core, ARM C1-Pro

Octa core

2.8 GHz, Single core, Cortex A720 2.4 GHz, Quad core, Cortex A725 1.84 GHz, Tri core, Cortex A520

Architecture (The higher, the better)

64 bit

Fabrication (The lower, the better)

3 nm

4 nm

Graphics (GPU)

Adreno 840

Mali-G1 Ultra MC12

Adreno 722

RAM

12 GB

16 GB

8 GB / 12 GB

RAM Type

LPDDR5X Ultra

LPDDR5X

Performance Test Results

AnTuTu Score (The higher, the better) AnTuTu benchmark measures overall performance of a phone by stress-testing CPU, GPU, RAM, etc.

N/A

3,536,552

1,457,989

Bootup Time (The lower, the better)

N/A

18.0 s

21.0 s

Gaming Test Results

Wild Life Extreme (The higher, the better) Wild Life Extreme is a classic mobile benchmark; it renders in 4K to test the peak performance of a wide range of devices.

N/A

2,078

Battery Drain* (The lower, the better)

N/A

4.0 %

N/A

Heating* (The lower, the better)

N/A

29.3 %

N/A

* after 30 mins of gaming

Display

Display Rating

Best In Class

Excellent

Display Type

LTPO AMOLED

AMOLED

Screen Size

6.85 inches (17.4 cm)

6.78 inches (17.22 cm)

6.32 inches (16.05 cm)

Resolution

1440x3168 px (QHD+)

1260x2800 px (FHD+)

1216x2640 px (FHD+)

Peak Brightness

6000 nits

4500 nits

1800 nits

HBM Brightness

2600 nits

N/A

1800 nits

Refresh Rate

144 Hz

120 Hz

Aspect Ratio

20:9

Pixel Density

508 ppi

453 ppi

460 ppi

Screen to Body Ratio (calculated)

90.11 %

90.77 %

89.37 %

Screen Protection

N/A

Yes

Bezel-less Display

Yes with punch-hole display

HDR 10 / HDR+ Support

Yes HDR 10+

N/A

Screen to Body Ratio (claimed by the brand)

N/A

94.85 %

93.4 %

Design

Height

163.7 mm

161.98 mm

151.2 mm

Width

76.80 mm

75.48 mm

72.4 mm

Thickness

8.7 mm

7.99 mm

8.2 mm

Weight

N/A

226 grams

193 grams

Build Material

N/A

Back: Glass Fiber

N/A

Water Resistance

Yes Water resistant IP68 IP69 (up to 30 minutes in a depth of 1.5 meter)

N/A

Ruggedness

Dust proof

N/A

Rear Camera

Rear Camera Rating

Excellent

Very Good

Resolution

50 MP
Primary Cameraf/1.9 Wide Angle24 mm focal length 1/1.56" sensor size

50 MP
Primary Camera3.5x Optical Zoomf/1.57 Wide Angle24 mm focal length 1/1.28" sensor size LYT 828 1.22µm pixel size

50 MP
Primary Camera18x Digital Zoom 3.5x Optical Zoomf/1.8 Wide Angle 79° field-of-view24 mm focal length

50 MP
f/2.6 Telephoto Camera85 mm focal length 1/1.95" sensor size 0.8µm pixel size

50 MP
f/2.0 Ultra-Wide Angle Camera15 mm focal length 1/2.76" sensor size 0.64µm pixel size

50 MP
f/2.0 Ultra-Wide Angle Camera16 mm focal length

50 MP
f/2.1 Ultra-Wide Angle Camera15 mm focal length 1/2.76" sensor size 0.64µm pixel size

200 MP
f/2.67 Telephoto Camera85 mm focal length 1/1.4" sensor size 0.56µm pixel size

50 MP
f/2.8 Telephoto Camera80 mm focal length

Autofocus

Yes Phase Detection Autofocus

Yes

OIS

Yes

Flash

Yes LED Flash

Yes Dual LED Flash

Yes

Image Resolution

N/A

6150 x 8150 Pixels

N/A

Shooting Modes

High Dynamic Range mode (HDR)

N/A

Camera Features

Optical Zoom

Digital Zoom
3.5 x Optical Zoom
Auto Flash

18 x Digital Zoom
3.5 x Optical Zoom

Video Recording

8k @30 fps
4k @24/30/60 fps
Full HD @30/60/120/240 fps

8k @30 fps
4k @30/60/120 fps
Full HD @30/60/120/240 fps

4k @30/60 fps
Full HD @30/60/120/240 fps
HD @30/120/240 fps

Video Recording Features

N/A

Bokeh portrait video

Dual Video Recording
Video HDR
Video Pro Mode

Front Camera

Front Camera Rating

Excellent

Resolution

32 MP
f/2.2 Wide Angle Primary Camera21 mm focal length 1/3.1" sensor size 0.7µm pixel size

50 MP
f/2.0 Wide Angle Primary Camera1/2.76" sensor size 0.64µm pixel size

50 MP
f/2.0 Wide Angle Primary Camera18 mm focal length

Autofocus

N/A

Yes

Flash

Yes Screen flash

Video Recording

4k @30/60 fps
Full HD @30/60 fps

Full HD @30/60 fps

4k @30/60 fps
Full HD @30/60 fps
HD @30 fps

Battery

Battery Rating

Excellent

Capacity

7400 mAh

6510 mAh

6700 mAh

Battery Type

Silicon Carbon

Li-ion

N/A

Quick Charging

Yes 100W

Yes 90W Flash Charging

Yes 80W Super VOOC Charging

Wireless Charging

Yes 40W Wireless Charging

Yes

Wireless Reverse Charging

N/A

Yes

N/A

Battery Test Results

Battery Life (PC Mark) (The higher, the better) PCMark Battery benchmark measures battery life of a phone with various activities such as web browsing, photo editing, writing, video editing, etc.

N/A

16h 01m

23h 00m

Charging Time (20% to 100%) (The lower, the better)

N/A

0h 40m 0s

1h 2m 0s

Storage

Internal Storage

256 GB

512 GB

256 GB

Storage Type

UFS 4.1

UFS 3.1

Expandable Storage

Network & Connectivity

SIM Slot(s)

Dual SIM

SIM Type

SIM1: Nano SIM2: Nano

Network Support

5G 4G

VoLTE

Yes

SIM 1

N/A

5G Bands:

FDD N1 / N2 / N3 / N5 / N7 / N8 / N20 / N25 / N26 / N28 / N66 / N75
TDD N38 / N40 / N41 / N71 / N77 / N78 / N79

5G Bands:

FDD N1 / N3 / N5 / N8 / N18 / N26 / N28 / N66
TDD N38 / N40 / N41 / N39 / N48 / N66 / N77 / N78

N/A

4G Bands:

TD-LTE 3500(band 48) / 2600(band 38) / 2300(band 40) / 2500(band 41) / 2100(band 34) / 1900(band 39) / 3500(band 42)
FD-LTE 1700(band 66) / 2100(band 1) / 1500(band 32) / 600(band 71) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 13) / 700(band 17) / 850(band 18) / 850(band 19) / 800(band 20) / 1900(band 25) / 850(band 26) / 700 (band 12)

4G Bands:

TD-LTE 3500(band 48) / 2600(band 38) / 2300(band 40) / 2500(band 41) / 2100(band 34) / 1900(band 39) / 3500(band 42) / 3700(band 43)
FD-LTE 1700(band 66) / 2100(band 1) / 1800(band 3) / 900(band 8) / 700(band 28) / 1700(band 4) / 850(band 5) / 850(band 18) / 850(band 19) / 850(band 26)

SIM 2

N/A

5G Bands:

FDD N1 / N2 / N3 / N5 / N7 / N8 / N18 / N20 / N25 / N26 / N28 / N66 / N75
TDD N38 / N40 / N41 / N48 / N71 / N77 / N78 / N79

5G Bands:

FDD N1 / N3 / N5 / N8 / N18 / N26 / N28 / N66
TDD N38 / N40 / N41 / N48 / N39 / N66 / N77 / N78

N/A

4G Bands:

TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 2100(band 34) / 1900(band 39) / 3500(band 42) / 3700(band 43) / 3500(band 48)
FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 1500(band 32) / 700(band 12) / 700(band 13) / 700(band 17) / 850(band 18) / 850(band 19) / 800(band 20) / 600(Band 71) / 1900(band 25) / 850(band 26) / 1700(band 66)

4G Bands:

TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 2100(band 34) / 1900(band 39) / 3500(band 42) / 3700(band 43) / 3500(band 48)
FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 700(band 28) / 1700(band 4) / 850(band 5) / 850(band 18) / 850(band 19) / 850(band 26) / 1700(band 66)