BeastCompare

Apple iPhone Duo vs Galaxy S21 Ultra: Which One Should You Buy?

Apple iPhone Duo edges ahead with a BeastScore of 88.3/100 — but the right choice depends on what matters to you.

Head-to-head
Comparing 2 devicesSwipe ⇄
Apple

Apple iPhone Duo

Apple iPhone Duo
88/ 100
Launch pricePrice on request
Samsung · 2021

Galaxy S21 Ultra

Galaxy S21 Ultra
88/ 100
Launch price$1,199
Head-to-head

Apple iPhone Duo wins 3 of 5 categories

Here's exactly where each phone is stronger.

Apple iPhone Duo
Apple iPhone Duo
3 wins
Galaxy S21 Ultra
Galaxy S21 Ultra
1 win
At a glance

Bigger shape = better phone.

SpeedCameraBatteryDisplayValue
Apple iPhone DuoGalaxy S21 Ultra
Category winners

Scores out of 100. How we score

  • SpeedApple iPhone Duo
    95
    90
  • CameraGalaxy S21 Ultra
    80
    100
  • VideoNot enough data
  • SelfieNot enough data
  • BatteryTie
    86
    86
  • DisplayApple iPhone Duo
    94
    88
  • ConnectivityNot enough data
  • SecurityNot enough data
  • ValueApple iPhone Duo
    85
    55
Key differences
  • Apple iPhone Duo has the bigger screen7.6" vs 6.8"
See all specs ↓

Why buy each phone

Swipe ⇄
Reasons to buy Apple iPhone Duo
  • ✓7.6" display at 120 Hz
Reasons to buy Galaxy S21 Ultra
  • ✓771 g lighter (228 g), easier to hold
  • ✓$8800 cheaper at launch ($1199 vs $9999)
  • ✓108 MP main camera

Full specifications

Swipe ⇄
SpecificationApple iPhone DuoGalaxy S21 Ultra
1. Display & Screen🏆 Apple iPhone Duo Wins Display
Screen typeAMOLEDDynamic AMOLED 2X
Screen Size7.6"6.8"
Resolution & DensityFHD+ / LTPO AMOLED 3200x1440 (515 ppi)
Refresh Rate120 Hz ProMotion120 Hz ProMotion
BrightnessN/A1,500 nits peak
Screen ProtectionNot listedNot listed
2. Platform & Performance🏆 Apple iPhone Duo Wins Performance
Chipset / ProcessorApple A20 Pro Snapdragon 888 (5nm)
CPU CoresNot listedNot listed
GPU GraphicsNot listedAdreno 660
Operating SystemiOS Android 11
3. Memory & Storage
RAM Memory12 GB LPDDR12 GB LPDDR
Internal Storage2048 GB128GB / 256GB / 512GB
Storage SpeedNot listedNot listed
Card SlotNoNo
4. Main Camera Optics🏆 Galaxy S21 Ultra Wins Camera
Primary Cameraundefined MP, Triple Camera System108 MP, f/1.8, OIS, Samsung HM3
Telephoto ZoomNone (digital zoom only)10 MP (3x optical zoom), f/2.4, OIS + 10 MP (10x optical zoom), f/4.9, OIS
Ultrawide CameraN/A12 MP, f/2.2
LiDAR / DepthNoneNone
5. Video
Main Camera Video
Not listed
Not listed
Front Video
Not listed
Not listed
6. Selfie Camera
Selfie Lensundefined MP40 MP, f/2.2
7. Body & Dimensions
DimensionsN/A165.1 x 75.6 x 8.9 mm
WeightN/A228 g
Build MaterialsNot listedNot listed
SIM TypeNot listedNot listed
Water ResistanceNot listedIP68
8. Battery & Charging
Battery Capacity5,000 mAh5,000 mAh
Wired Fast ChargingFast charging25W wired fast charging
Wireless ChargingNot listed15W wireless charging
Reverse ChargingNot listedNot listed
9. Sound & Audio
LoudspeakerNot listedNot listed
3.5mm Headphone JackNoNo
10. Connectivity
Wi-Fi StandardNot listedWi-Fi 6E
BluetoothNot listed5.0
USB Port & SpeedNot listedUSB-C 3.2
NFCYesYes (contactless payment)
11. Sensors & Security
SensorsNot listedNot listed
Satellite FeaturesNot listedNot listed
12. Colors & Overview
ColorsNot listedNot listed
Launch PricePrice on request$1199
Our verdict

Apple iPhone Duo wins — BeastScore 88.3/100

After comparing all the specs, Apple iPhone Duo is the stronger all-round phone. Its main edge: Higher overall BeastScore: 88.3 vs top rival 87.8 and Significantly larger display: 7.6" vs max 6.8" for media & multitasking.

Buy Apple iPhone Duo if you want

Higher overall BeastScore: 88.3 vs top rival 87.8 · Significantly larger display: 7.6" vs max 6.8" for media & multitasking

Buy Galaxy S21 Ultra if you want

Significantly faster wired charging: 25W vs max 0W · Higher resolution main sensor: 108 MP vs max 0 MP

Common questions

Which is better: Apple iPhone Duo or Galaxy S21 Ultra?

Apple iPhone Duo leads with an overall BeastScore of 88.3/100 compared to Galaxy S21 Ultra (87.8/100), driven by advantages in Higher overall BeastScore: 88.3 vs top rival 87.8 and Significantly larger display: 7.6" vs max 6.8" for media & multitasking.

What are the main battery and display differences between Apple iPhone Duo and Galaxy S21 Ultra?

Apple iPhone Duo has a 7.6-inch display and 5000 mAh battery. Galaxy S21 Ultra has a 6.8-inch display and 5000 mAh battery.

How do Apple iPhone Duo and Galaxy S21 Ultra compare for speed?

Apple iPhone Duo scores 95/100 for performance; Galaxy S21 Ultra scores 90/100.

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