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Phone Comparison

OnePlus 3T vs Apple iPhone 15 Pro Max Comparison

A detailed, side-by-side comparison to help you pick the right phone.
OnePlus 3T
OnePlus
OnePlus 3T
8.7 / 10
Compass Score
From 47 critic reviews
Full review →
Apple iPhone 15 Pro Max
Apple
Apple iPhone 15 Pro Max
9.0 / 10
Compass Score
From 74 critic reviews
Full review →
Verdict

Pros & cons

OnePlus 3T

+
Good
+ Solid build quality
+ Crisp, colorful screen
+ Great performance
+ Price
+ Fast, detailed rear camera
+ All-day battery life
+ Dual SIM support
−
Not
− No microSD support
− Inconsistent front-facing camera
− Proprietary fast charging

iPhone 15 Pro Max

A feature-packed phone with a sleek design but still needs extra care due to its delicate exterior.

+
Good
+ Lighter titanium design
+ Advanced gaming performance
+ Impressive 5x optical zoom
+ Long battery life
+ Clear audio quality
−
Not
− Screen easily scratches
− Slow charging
− Action Button limitations
− Heats up during heavy use
− High price
Spec data

How they compare

OnePlus 3T
iPhone 15 Pro Max
Price (MSRP)
—
Price (MSRP)
$1,199
OS
Android
OS
iOS
Processor
Qualcomm Snapdragon 821 Quad core
Processor
Apple A17 Pro Hexa-core
Camera zoom
—
Camera zoom
—
Battery life
—
Battery life
12h 58m
GSMArena Active Use
Wired charging
—
Wired charging
—
Wireless charging
—
Wireless charging
15W
Display
Color
Display
Color, 120Hz
2000 nits peak
Software support
—
Software support
—
Repairability
—
Repairability
7/10
iFixit
Weight
158g (5.6 oz)
Weight
221g (7.8 oz)
Fingerprint
Yes
Fingerprint
No
Highlighted cells indicate the stronger value where a clear winner exists.
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Third-party data

Testing & benchmarks

OnePlus 3T
iPhone 15 Pro Max
DxOMark v5
—
DxOMark v5
154
photo 153 · video 158
AnTuTu v10
—
AnTuTu v10
1.42M
GSMArena endurance
—
GSMArena endurance
12h 58m
Active Use
iFixit repairability
—
iFixit repairability
7/10
Physical comparison

Size & weight

Footprint · to scale
OnePlus 3T
0.6" × 0.3"
iPhone 15 Pro Max
6.3" × 3"
Thickness · to scale
OnePlus 3T
0"
iPhone 15 Pro Max
0.3"
Height
0.6" (15.3 mm)
Height
6.3" (159.9 mm)
Width
0.3" (7.5 mm)
Width
3" (76.7 mm)
Depth
0" (0.7 mm)
Depth
0.3" (8.3 mm)
Weight
158g (5.6 oz)
Weight
221g (7.8 oz)
Screen
5.5"
Screen
6.7"

Dimensions shown in inches (mm). Silhouettes are proportionally scaled for visual comparison.

Also compared

Related comparisons

Other head-to-head matchups for the phones on this page.

Apple iPhone 15 Pro Max
9.0
VS
Apple iPhone 18 Pro Max
8.9
Apple iPhone 15 Pro Max vs Apple iPhone 18 Pro Max
Compare →
Common questions

OnePlus 3T vs iPhone 15 Pro Max: FAQ

Which is better, the OnePlus 3T or iPhone 15 Pro Max?
Based on aggregated critic reviews, the iPhone 15 Pro Max earns a Compass Score of 9.0 compared to 8.7 for the OnePlus 3T. That 0.3-point gap reflects stronger reviews across the board, though individual priorities like camera quality, battery life, or price could tip the scales the other way. Scores aggregate dozens of expert opinions, so they are a useful starting point, not the final word.

Specifications sourced from manufacturers and third-party databases. Last updated October 2026. Suggest a correction →