BeastCompare

Apple iPhone Duo vs Xiaomi 15 Ultra: Which One Should You Buy?

Apple iPhone Duo edges ahead with a BeastScore of 93.5/100 — but the right choice depends on what matters to you.

Head-to-head
Comparing 2 devicesSwipe ⇄
Apple · 2026

Apple iPhone Duo

Apple iPhone Duo
94/ 100
Launch price$1,899
Xiaomi · 2025

Xiaomi 15 Ultra

Xiaomi 15 Ultra
88/ 100
Launch price$1,599
Head-to-head

Apple iPhone Duo wins 3 of 6 categories

Here's exactly where each phone is stronger.

Apple iPhone Duo
Apple iPhone Duo
3 wins
Xiaomi 15 Ultra
Xiaomi 15 Ultra
2 wins
At a glance

Bigger shape = better phone.

SpeedCameraSelfieBatteryDisplayValue
Apple iPhone DuoXiaomi 15 Ultra
Category winners

Scores out of 100. How we score

  • SpeedApple iPhone Duo
    97
    95
  • CameraApple iPhone Duo
    93
    91
  • VideoNot enough data
  • SelfieXiaomi 15 Ultra
    76
    88
  • BatteryTie
    88
    88
  • DisplayApple iPhone Duo
    98
    90
  • ConnectivityNot enough data
  • SecurityNot enough data
  • ValueXiaomi 15 Ultra
    50
    55
Key differences
  • Xiaomi 15 Ultra has the bigger battery5,410 mAh vs 5,200 mAh
  • Xiaomi 15 Ultra charges faster90W vs 60W
  • Xiaomi 15 Ultra has a sharper main camera50 MP vs 48 MP
  • Apple iPhone Duo has the bigger screen7.8" vs 6.73"
  • Xiaomi 15 Ultra is lighter226 g vs 239 g
  • Xiaomi 15 Ultra launched cheaper$1,599 vs $1,899
  • Xiaomi 15 Ultra has a sharper selfie camera32 MP vs 18 MP
  • Apple iPhone Duo has the faster chipApple M4 / A20 Pro Max vs Snapdragon 8 Elite
See all specs ↓

Why buy each phone

Swipe ⇄
Reasons to buy Apple iPhone Duo
  • ✓48 MP main camera
  • ✓7.8" display at 120 Hz
Reasons to buy Xiaomi 15 Ultra
  • ✓13 g lighter (226 g vs 239 g), easier to hold
  • ✓$300 cheaper at launch ($1,599 vs $1,899)
  • ✓Bigger 5,410 mAh battery (+210 mAh)

Full specifications

Swipe ⇄
SpecificationApple iPhone DuoXiaomi 15 Ultra
1. Display & Screen🏆 Apple iPhone Duo Wins Display
Screen typeFoldable Super Retina XDR ProMotionLTPO AMOLED
Screen Size7.8"6.73"
Resolution & Density2200x2480 (430 ppi)3200x1440 (522 ppi)
Refresh Rate120 Hz ProMotion120 Hz adaptive
Brightness2,800 nits peak3,200 nits peak
Screen ProtectionNot listedNot listed
2. Platform & Performance🏆 Apple iPhone Duo Wins Performance
Chipset / ProcessorApple M4 / A20 Pro Max (2nm)Snapdragon 8 Elite (3nm)
CPU CoresNot listedNot listed
GPU GraphicsApple 10-core GPUAdreno 830
Operating SystemiOS Fold 27Android 15
3. Memory & Storage
RAM Memory16 GB LPDDR16 GB LPDDR
Internal Storage512GB / 1024GB / 2048GB256GB / 512GB / 1024GB
Storage SpeedNot listedNot listed
Card SlotNoNo
4. Main Camera Optics🏆 Apple iPhone Duo Wins Camera
Primary Camera48 MP, f/1.6, OIS50 MP, f/1.63, OIS, Sony LYT-900
Telephoto Zoom48 MP (5x optical zoom), f/2.8, OIS50 MP (5x optical zoom), f/2.5, OIS
Ultrawide Camera48 MP, f/2.250 MP, f/1.8
LiDAR / DepthNoneNone
5. Video
Main Camera Video
Not listed
Not listed
Front Video
Not listed
Not listed
6. Selfie Camera
Selfie Lens18 MP, f/1.932 MP, f/2
7. Body & Dimensions🏆 Xiaomi 15 Ultra Lightest Chassis
DimensionsN/A161.3 x 75.5 x 9.5 mm
Weight239 g226 g
Build MaterialsNot listedNot listed
SIM TypeNot listedNot listed
Water ResistanceIPX8IP68
8. Battery & Charging
Battery Capacity5,200 mAh5,410 mAh
Wired Fast Charging60W wired fast charging90W wired fast charging
Wireless Charging25W wireless charging80W wireless charging
Reverse ChargingNot listedNot listed
9. Sound & Audio
LoudspeakerNot listedNot listed
3.5mm Headphone JackNoNo
10. Connectivity
Wi-Fi StandardNot listedWi-Fi 7
BluetoothNot listed5.4
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 Price$1,899$1,599
Our verdict

Apple iPhone Duo wins — BeastScore 93.5/100

The Apple iPhone Duo is the better pick for most people thanks to its bigger screen (7.8" vs 6.73") and faster chip (Apple M4 / A20 Pro Max vs Snapdragon 8 Elite). The Xiaomi 15 Ultra is worth a look if you prefer its bigger battery (5,410 mAh vs 5,200 mAh).

Buy Apple iPhone Duo if you want

Larger display: 7.8" vs 6.73"

Buy Xiaomi 15 Ultra if you want

Larger battery: 5,410 mAh vs 5,200 mAh · Faster wired charging: 90W vs 60W

Common questions

Which is better: Apple iPhone Duo or Xiaomi 15 Ultra?

The Apple iPhone Duo is the better pick for most people thanks to its bigger screen (7.8" vs 6.73") and faster chip (Apple M4 / A20 Pro Max vs Snapdragon 8 Elite). The Xiaomi 15 Ultra is worth a look if you prefer its bigger battery (5,410 mAh vs 5,200 mAh). BeastScore: Apple iPhone Duo 93.5/100, Xiaomi 15 Ultra 87.6/100.

What are the main battery and display differences between Apple iPhone Duo and Xiaomi 15 Ultra?

Apple iPhone Duo has a 7.8-inch display and 5200 mAh battery. Xiaomi 15 Ultra has a 6.73-inch display and 5410 mAh battery.

How do Apple iPhone Duo and Xiaomi 15 Ultra compare for speed?

Apple iPhone Duo scores 97/100 for performance; Xiaomi 15 Ultra scores 95/100.

Similar Smartphones

Galaxy Z Fold8 Ultra
Samsung

Galaxy Z Fold8 Ultra

iPhone 18 Pro Max
Apple

iPhone 18 Pro Max

Google Pixel 9 Pro
Google

Google Pixel 9 Pro

OnePlus 16
Oneplus

OnePlus 16

Redmi Note 13 Pro+
Xiaomi

Redmi Note 13 Pro+

Vivo X300s
Vivo

Vivo X300s

Oppo Find X9 Ultra 5G
Oppo

Oppo Find X9 Ultra 5G

Motorola Razr Fold 5G
Motorola

Motorola Razr Fold 5G

More Smartphones comparisons

vs

Pixel 10 Pro Fold vs Apple iPhone Duo

Compare →
vs

Galaxy Z Fold 7 vs Apple iPhone Duo

Compare →
vs

Apple iPhone Duo vs Galaxy Z Fold8 Ultra

Compare →
vs

Galaxy Z Fold8 vs Apple iPhone Duo

Compare →
vs

Xiaomi 14 Ultra vs Xiaomi 15 Ultra

Compare →
vs

Xiaomi 15 Ultra vs Xiaomi 17 Ultra 5G (China)

Compare →
vs

Xiaomi 15T vs Xiaomi 15 Ultra

Compare →
vs

Xiaomi 15 Ultra vs Xiaomi 15

Compare →

Gear for the Apple iPhone Duo

All Amazon Finds →
Amazon FindsBest MagSafe car mountsVent, dash and charging mounts.See the picks Amazon FindsBest 3-in-1 charging stationsPhone, watch and earbuds on one stand.See the picks Amazon FindsAirPods Pro 3 vs Galaxy Buds 4 Pro vs BoseWhich flagship earbuds fit your phone.See the picks Amazon FindsApple Watch vs Galaxy Watch vs Pixel WatchThe right watch for your phone.See the picks

Related articles

All articles →
Intel Lunar Lake (Core Ultra 200V) vs. AMD Strix Point (Ryzen AI 300) vs. Qualcomm Snapdragon X Elite: The Definitive Copilot+ PC Silicon Architecture, Battery Life, NPU, and x86 vs. ARM Benchmark Showdown (2026)Copilot+ PC Silicon Deep Dive
19 min read

Intel Lunar Lake (Core Ultra 200V) vs. AMD Strix Point (Ryzen AI 300) vs. Qualcomm Snapdragon X Elite: The Definitive Copilot+ PC Silicon Architecture, Battery Life, NPU, and x86 vs. ARM Benchmark Showdown (2026)

An exhaustive 3-way architectural breakdown pitting Intel's Memory-on-Package Lunar Lake (Core Ultra 7 258V / 288V), AMD's Zen 5 / RDNA 3.5 Strix Point (Ryzen AI 9 HX 370), and Qualcomm's ARM Oryon Snapdragon X Elite against each other across IPC, multi-threaded efficiency, gaming FPS, local NPU TOPS, and real-world 20+ hour battery life.

Read →
Samsung Odyssey Neo G9 57" vs. Odyssey OLED G9 49" vs. ASUS ROG Swift PG49WCD vs. LG UltraGear 45GS96QB: The Definitive Flagship Super Ultrawide & Curved Gaming Monitor Architecture, Dual 4K 7680x2160 vs. Dual QHD QD-OLED, DisplayPort 2.1 Bandwidth (UHBR 13.5/20), 240Hz Refresh Rates, 2,392 Mini-LED Local Dimming Zones vs. Infinite Contrast OLED, KVM Multitasking, and GPU Driveability Shootout (2026)Flagship Monitor Shootout
16 min read

Samsung Odyssey Neo G9 57" vs. Odyssey OLED G9 49" vs. ASUS ROG Swift PG49WCD vs. LG UltraGear 45GS96QB: The Definitive Flagship Super Ultrawide & Curved Gaming Monitor Architecture, Dual 4K 7680x2160 vs. Dual QHD QD-OLED, DisplayPort 2.1 Bandwidth (UHBR 13.5/20), 240Hz Refresh Rates, 2,392 Mini-LED Local Dimming Zones vs. Infinite Contrast OLED, KVM Multitasking, and GPU Driveability Shootout (2026)

A comprehensive architectural shootout of the world's most advanced curved super ultrawide monitors. We compare Samsung's 57-inch Dual 4K Quantum Mini-LED titan against 49-inch Gen 2 QD-OLEDs and LG's 45-inch 800R curved WOLED across DisplayPort 2.1 bandwidth tunneling, 240Hz motion clarity, text rendering subpixel matrices, multi-window KVM workflows, and GPU horsepower requirements.

Read →
Here are the Apple iPhone Duo alternativesGuide
6 min read

Here are the Apple iPhone Duo alternatives

Explore top alternatives to the $2,000 Apple iPhone Duo, including the Samsung Galaxy Z Fold8, Xiaomi 18 Fold 5G, Vivo X Fold5 Pro, and OnePlus Open 2.

Read →