iQOO 15 vs vivo X300 Ultra

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

Here is the summary of the results:

Performance: iQOO 15 scores higher on the Geekbench Multi-Core test with 10,579, while vivo X300 Ultra scores 10,359, making iQOO 15 the better performer.

Display: iQOO 15 offers a screen size of 6.85 inches, while vivo X300 Ultra offers 6.82 inches, making iQOO 15 the larger display of the two. Both iQOO 15 and vivo X300 Ultra feature the same AMOLED display.

Rear Camera: vivo X300 Ultra offers a higher rear camera resolution with 200 MP, while iQOO 15 offers 50 MP, making vivo X300 Ultra better for rear camera photography.

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

Battery: vivo X300 Ultra delivers longer battery life with 15h 10m, while iQOO 15 delivers 13h 07m, making vivo X300 Ultra the better pick for all day usage.

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

Expert Review: vivo X300 Ultra receives a higher expert rating of 8.7 from the editorial team, while iQOO 15 is rated 8.

User Rating: vivo X300 Ultra receives a higher user rating of 4.8, while iQOO 15 has a rating of 4.7.

iQOO 15

₹76,999

@ Amazon

vivo X300 Ultra

₹159,999

@ Amazon

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Show Only Differences

Summary

Spec Score

94%

97%

Release Date

01 Dec, 2025

14 May, 2026

Performance


Snapdragon 8 Elite Gen 5	Snapdragon 8 Elite Gen 5
Octa Core (upto 4.6 GHz)	Octa Core (upto 4.61 GHz)
12 GB RAM	16 GB RAM

Display


6.85 inches (17.4 cm)	6.82 inches (17.32 cm)
AMOLED	AMOLED
1440x3168 px (QHD+)	1440x3168 px (QHD+)
144 Hz Refresh Rate	144 Hz Refresh Rate

Rear Camera


50 MP Wide Angle Primary Camera	200 MP Primary Camera (upto 3.7x Optical Zoom)
50 MP Ultra-Wide Angle Camera	200 MP Telephoto Camera
50 MP Periscope Camera (upto 3x Optical Zoom)	50 MP Ultra-Wide Angle Camera

Front Camera


32 MP Wide Angle Lens	50 MP

Battery


7000 mAh	6600 mAh
100W Flash Charging	100W Flash Charging
Wireless Charging	Wireless Charging

Storage

256 GB	512 GB
UFS 4.1	UFS 4.1

Expert Review

8.0/10

Read Expert Review

8.7/10

Read Expert Review

Pros

Sharp, bright, eye-friendly display
Solid performance, excellent thermals
Cameras offer good exposure
Good everyday battery life

Stellar and versatile three-lens camera system
Excellent performance
Bright and crisp 2K AMOLED display

Cons

Front camera needs refinements
AI features feel basic

Battery life could have been better
Very expensive with camera kit
No shortcut key

User Ratings

4.7/5

(1,178 ratings)

4.8/5

(43 ratings)

Benchmarks (The higher, the better)

3,842,735 AnTuTu Score	3,977,648 AnTuTu Score
13h 07m Battery Life (PC Mark)	15h 10m Battery Life (PC Mark)

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₹76,999

@ Amazon

₹159,999

@ Amazon

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User Feedback

General

Launch Date

Dec 01, 2025

(Official)

May 06, 2026

(Official)

Operating System

Android v16

OS Updates

5 Year

5 Years

Security Updates

7 Year

7 Years

Custom UI

Origin OS

Performance

Performance Rating

Excellent

Best In Class

Chipset

Qualcomm Snapdragon 8 Elite Gen 5 SM8850-AC

Processor

Octa core

4.6 GHz, Dual core, Oryon 3.62 GHz, Hexa Core, Oryon

Octa core

4.61 GHz, Dual core, Oryon 3.62 GHz, Hexa Core, Oryon

Architecture (The higher, the better)

64 bit

Fabrication (The lower, the better)

3 nm

Graphics (GPU)

Adreno 840

RAM

12 GB / 16 GB

16 GB

RAM Type

LPDDR5X Ultra

Performance Test Results

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

3,842,735

3,977,648

Bootup Time (The lower, the better)

13.0 s

14.0 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.

6,166

6,450

Battery Drain* (The lower, the better)

5.0 %

7.0 %

Heating* (The lower, the better)

3.3 %

21.7 %

* after 30 mins of gaming

Display

Display Rating

Best In Class

Display Type

AMOLED

Screen Size

6.85 inches (17.4 cm)

6.82 inches (17.32 cm)

Resolution

1440x3168 px (QHD+)

Peak Brightness

6000 nits

4500 nits

HBM Brightness

2600 nits

N/A

Refresh Rate

144 Hz

Aspect Ratio

19.8:9

Pixel Density

508 ppi

510 ppi

Screen to Body Ratio (calculated)

90.14 %

89.7 %

Screen Protection

N/A

Yes

Bezel-less Display

N/A	Yes with punch-hole display

HDR 10 / HDR+ Support

N/A

Yes

Screen to Body Ratio (claimed by the brand)

94.37 %

94.49 %

Design

Height

163.65 mm

162.98 mm

Width

76.80 mm

76.81 mm

Thickness

8.14 mm

8.19 mm

Weight

216.2 grams

232 grams

Build Material

Back: Glass

Ruggedness

Dust proof

N/A

Rear Camera

Rear Camera Rating

Excellent

Best In Class

Resolution

50 MP
Primary Cameraf/1.88 Wide Angle1/1.56" sensor size IMX921 1µm pixel size

200 MP
Primary Camera105x Digital Zoom 3.7x Optical Zoomf/1.8535 mm focal length LYT 901 0.7µm pixel size

50 MP
f/2.05 Ultra-Wide Angle Camera1/2.76" sensor size 0.64µm pixel size

200 MP
f/2.67 Telephoto Camera85 mm focal length 1/1.28" sensor size

50 MP
f/2.65 Periscope Camera1/1.95" sensor size 0.8µm pixel size

50 MP
f/2.0 Ultra-Wide Angle Camera14 mm focal length

Autofocus

Yes Phase Detection Autofocus

Yes

OIS

Yes

Flash

Yes LED Flash

Yes Dual LED Flash

Image Resolution

6150 x 8150 Pixels

N/A

Camera Features

Digital Zoom

105 x Digital Zoom
3.7 x Optical Zoom

Video Recording

Full HD @30/60/120/240 fps

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

Front Camera

Front Camera Rating

Excellent

Best In Class

Resolution

32 MP
f/2.2 Wide Angle Primary Camera21 mm focal length

50 MP
f/2.45 Primary Camera

Autofocus

N/A

Flash

Yes	Yes Screen flash

Video Recording

Full HD @30/60 fps

N/A

Compare Camera Samples

Battery

Battery Rating

Excellent

Capacity

7000 mAh

6600 mAh

Battery Type

Silicon Carbon

Li-ion

Quick Charging

Yes 100W Flash Charging

Wireless Charging

Yes 40W Wireless Charging

Wireless Reverse Charging

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.

13h 07m

15h 10m

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

0h 45m 0s

0h 36m 0s

Storage

Internal Storage

256 GB / 512 GB

512 GB

Storage Type

UFS 4.1

Expandable Storage

N/A

Network & Connectivity

SIM Slot(s)

Dual SIM

SIM Type

SIM1: Nano SIM2: eSIM

SIM1: Nano SIM2: Nano

Network Support

5G 4G

VoLTE

Yes

SIM 1

5G Bands:

FDD N1 / N2 / N3 / N5 / N7 / N8 / N18 / N20 / N25 / N26 / N28 / N66
TDD N38 / N40 / N41 / N48 / N66 / N71 / N75 / N77 / N78 / N80 / N81 / N83 / N84 / N89

5G Bands:

FDD N1 / N2 / N3 / N5 / N7 / N8 / N12 / N18 / N20 / N25 / N26 / N28 / N66
TDD N38 / N40 / N41 / N48 / N77 / N78 / N79 / N80 / N81 / N83 / N84 / N89

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) / 600(band 71) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 850(band 18) / 850(band 19) / 800(band 20) / 850(band 26)

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) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 17) / 850(band 18) / 850(band 19) / 800(band 20) / 1900(band 25) / 850(band 26)

SIM 2

5G Bands:

FDD N1 / N2 / N3 / N5 / N7 / N8 / N18 / N20 / N25 / N26 / N28 / N66
TDD N38 / N40 / N41 / N48 / N66 / N71 / N75 / N77 / N78 / N80 / N81 / N83 / N84 / N89

5G Bands:

FDD N1 / N2 / N3 / N5 / N7 / N8 / N12 / N18 / N20 / N25 / N26 / N28 / N66
TDD N38 / N40 / N41 / N48 / N77 / N78 / N79 / N80 / N81 / N83 / N84 / N89

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) / 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) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 12) / 700(band 17) / 850(band 18) / 850(band 19) / 800(band 20) / 1900(band 25) / 850(band 26) / 1700(band 66)