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Phone Comparison

OnePlus 3 vs Apple iPhone 13 Pro Max Comparison

A detailed, side-by-side comparison to help you pick the right phone.
OnePlus 3
OnePlus
OnePlus 3
8.7 / 10
Compass Score
From 50 critic reviews
Full review →
Apple iPhone 13 Pro Max
Apple
Apple iPhone 13 Pro Max
9.0 / 10
Compass Score
From 41 critic reviews
Full review →
Verdict

Pros & cons

OnePlus 3

+
Good
+ Great battery life
+ All-metal chassis
+ Blazing performance
+ 6GB of RAM
+ Dual SIM support
+ High level of software customization options
−
Not
− Finicky camera
− No microSD support
− Non-removeable battery
− Concerns about memory availability
− Proprietary cable/charger required for quick charging

iPhone 13 Pro Max

The decision between the iPhone 13 Pro and the iPhone 13 Pro Max essentially comes down to screen size and battery life. If you want the best of both — and don’t mind the price tag — the Pro Max is the ultimate 2021 iPhone model.

Spec data

How they compare

Choosing the cheaper OnePlus 3 means giving up most on: Camera zoom

OnePlus 3
iPhone 13 Pro Max
Price (MSRP)
$399
Price (MSRP)
$1,099
OS
Android
OS
iOS
Processor
Qualcomm MSM8996 Snapdragon 820 Quad core
Processor
Apple A15 Bionic (5 nm) Hexa-core
Camera zoom
β€”
Camera zoom
6Γ—
Battery life
β€”
Battery life
β€”
Wired charging
β€”
Wired charging
β€”
Wireless charging
β€”
Wireless charging
β€”
Display
Color
Display
Color
Software support
β€”
Software support
β€”
Repairability
β€”
Repairability
β€”
Weight
158g (5.6 oz)
Weight
240g (8.5 oz)
Fingerprint
No
Fingerprint
Yes
Highlighted cells indicate the stronger value where a clear winner exists.
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Third-party data

Testing & benchmarks

OnePlus 3
iPhone 13 Pro Max
DxOMark v5
β€”
DxOMark v5
141
photo 140 Β· video 146
AnTuTu v10
β€”
AnTuTu v10
β€”
GSMArena endurance
β€”
GSMArena endurance
β€”
iFixit repairability
β€”
iFixit repairability
β€”
Physical comparison

Size & weight

Footprint · to scale
OnePlus 3
6" × 3"
iPhone 13 Pro Max
6.3" × 3.1"
Thickness · to scale
OnePlus 3
0.3"
iPhone 13 Pro Max
0.3"
Height
6" (153 mm)
Height
6.3" (160.8 mm)
Width
3" (75 mm)
Width
3.1" (78.1 mm)
Depth
0.3" (7 mm)
Depth
0.3" (7.7 mm)
Weight
158g (5.6 oz)
Weight
240g (8.5 oz)
Screen
5.5"
Screen
6.7"

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

Common questions

OnePlus 3 vs iPhone 13 Pro Max: FAQ

Which is better, the OnePlus 3 or iPhone 13 Pro Max?
Based on aggregated critic reviews, the iPhone 13 Pro Max earns a Compass Score of 9.0 compared to 8.7 for the OnePlus 3. 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.
Which phone is more affordable, the OnePlus 3 or iPhone 13 Pro Max?
The OnePlus 3 launches at $399, which is $700 less than the iPhone 13 Pro Max at $1,099. Street prices shift after launch, so check current deals for both phones before deciding.

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