Phone Comparison
Apple iPhone 13 Pro Max vs OnePlus 3 Comparison
A detailed, side-by-side comparison to help you pick the right phone.
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Verdict
Pros & cons
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.
OnePlus 3
+
What's good
+
Great battery life
+
All-metal chassis
+
Blazing performance
+
6GB of RAM
+
Dual SIM support
+
High level of software customization options
−
What's 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.
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
Spec data
How they compare
Choosing the cheaper OnePlus 3 means giving up most on: Camera zoom
iPhone 13 Pro Max
OnePlus 3
Price (MSRP)
$1,099
$399
OS
iOS
Android
Processor
Apple A15 Bionic (5 nm) Hexa-core
Qualcomm MSM8996 Snapdragon 820 Quad core
Camera zoom
6×
—
Battery life
—
—
Wired charging
—
—
Wireless charging
—
—
Display
Color
Color
Software support
—
—
Repairability
—
—
Weight
240g (8.5 oz)
158g (5.6 oz)
Fingerprint
Yes
No
Highlighted cells indicate the stronger value where a clear winner exists.
Spec data
How they compare
Choosing the cheaper OnePlus 3 means giving up most on: Camera zoom
iPhone 13 Pro Max
OnePlus 3
Price (MSRP)
$1,099
Price (MSRP)
$399
OS
iOS
OS
Android
Processor
Apple A15 Bionic (5 nm) Hexa-core
Processor
Qualcomm MSM8996 Snapdragon 820 Quad core
Camera zoom
6×
Camera zoom
—
Battery life
—
Battery life
—
Wired charging
—
Wired charging
—
Wireless charging
—
Wireless charging
—
Display
Color
Display
Color
Software support
—
Software support
—
Repairability
—
Repairability
—
Weight
240g (8.5 oz)
Weight
158g (5.6 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
iPhone 13 Pro Max
OnePlus 3
DxOMark v5
141
photo 140 · video 146
—
AnTuTu v10
—
—
GSMArena endurance
—
—
iFixit repairability
—
—
Third-party data
Testing & benchmarks
iPhone 13 Pro Max
OnePlus 3
DxOMark v5
141
photo 140 · video 146
DxOMark v5
—
AnTuTu v10
—
AnTuTu v10
—
GSMArena endurance
—
GSMArena endurance
—
iFixit repairability
—
iFixit repairability
—
Physical comparison
Size & weight
Footprint · to scale
iPhone 13 Pro Max
6.3" × 3.1"
OnePlus 3
6" × 3"
Thickness · to scale
iPhone 13 Pro Max
0.3"
OnePlus 3
0.3"
iPhone 13 Pro Max
OnePlus 3
Height
6.3" (160.8 mm)
6" (153 mm)
Width
3.1" (78.1 mm)
3" (75 mm)
Depth
0.3" (7.7 mm)
0.3" (7 mm)
Weight
240g (8.5 oz)
158g (5.6 oz)
Screen
6.7"
5.5"
Height
6.3" (160.8 mm)
Height
6" (153 mm)
Width
3.1" (78.1 mm)
Width
3" (75 mm)
Depth
0.3" (7.7 mm)
Depth
0.3" (7 mm)
Weight
240g (8.5 oz)
Weight
158g (5.6 oz)
Screen
6.7"
Screen
5.5"
Dimensions shown in inches (mm). Silhouettes are proportionally scaled for visual comparison.
Common questions
iPhone 13 Pro Max vs OnePlus 3: FAQ
Which is better, the iPhone 13 Pro Max or OnePlus 3?
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 iPhone 13 Pro Max or OnePlus 3?
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 →