Compare / iPhone Duo vs 18 Fold

iPhone Duo vs 18 Fold

A side-by-side comparison of the iPhone Duo and the 18 Fold, covering display, chipset, memory, camera, battery and build.

Apple

iPhone Duo

Xiaomi

18 Fold

Overview

Display

iPhone Duo

7.6inch

LTPO Super Retina XDR OLED · 120 Hz

1878 × 2670 · 430 PPI

18 Fold

7.58inch

LTPO AMOLED · 120 Hz

2364 × 1672 · 382 PPI

Chip

iPhone Duo

Apple A20 Pro (2 nm)

Hexa-core (2x GHz high performance + 4x GHz)

Apple GPU (7-core graphics) · iOS 27

18 Fold

XRing O3 (3 nm)

10-core 4.35 GHz

Arm G2-Ultra NX MC16 · Android 17

Memory

iPhone Duo

12GB RAM

256 GB · 512 GB · 1 TB · 2 TB storage

No card slot

18 Fold

12 / 16GB RAM

256 GB · 512 GB · 1 TB storage

No card slot

Camera

iPhone Duo

48MP Main

48 MP Ultra Wide

12 MP selfie

4K@24/25/30/60/100/120fps video

18 Fold

200MP Main

50 MP Telephoto

50 MP Ultra Wide

16 MP selfie

8K@24fps video

Battery

iPhone Duo

25 W wireless

18 Fold

6,000mAh

67 W wired · 50 W wireless

Build

iPhone Duo

254g

117.8 × 164.6 × 5.2 mm

IP68

18 Fold

219g

163.8 × 117.8 × 5 mm

IP58

Connectivity

iPhone Duo

5GWi-Fi 7Bluetooth 6.0NFCeSIM + eSIM (8 or more, max 2 at a time) - GlobalUSB Type-C 3.2 Gen 2

18 Fold

5GWi-Fi 7Bluetooth 6.0NFCNano-SIM + Nano-SIMUSB Type-C 3.2 Gen2

Specifications

iPhone Duo

18 Fold

iPhone Duo

Technology: GSM / HSPA / LTE / 5G
2G bands: GSM 850 / 900 / 1800 / 1900
3G bands: HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 32, 34, 38, 39, 40, 41, 42, 48, 53, 66, 71, 106 - A3447, A3719
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 30, 32, 34, 38, 39, 40, 41, 42, 48, 53, 66, 106 - A3720
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 30, 32, 34, 38, 39, 40, 41, 42, 48, 66, 106 - A3721
5G bands: 1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 30, 38, 40, 41, 48, 53, 66, 70, 75, 77, 78, 79 SA/NSA/Sub6 - A3720
1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 26, 28, 29, 30, 38, 40, 41, 48, 53, 66, 70, 71, 75, 77, 78, 79, 258, 260, 261 SA/NSA/Sub6/mmWave - A3447
1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 30, 38, 40, 41, 48, 66, 70, 75, 77, 78, 79 SA/NSA/Sub6 - A3721
1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 26, 28, 29, 30, 38, 40, 41, 48, 53, 66, 70, 71, 75, 77, 78, 79 SA/NSA/Sub6 - A3719
Speed: HSPA, LTE, 5G

18 Fold

Technology: GSM / HSPA / LTE / 5G
2G bands: GSM 850 / 900 / 1800 / 1900
3G bands: HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 42, 48, 66
5G bands: 1, 2, 3, 5, 7, 8, 12, 13, 18, 20, 25, 26, 28, 34, 38, 39, 40, 41, 48, 66, 77, 78, 79 SA/NSA/Sub6
Speed: HSPA, LTE, 5G

iPhone Duo

Announced: 2026, September 09
Status: Coming soon. Exp. release 2026, October 23

18 Fold

Announced: 2026, September 07
Status: Available. Released 2026, September 07

iPhone Duo

Dimensions: Unfolded: 117.8 x 164.6 x 5.2 mm
Folded: 117.8 x 84.1 x 11.3 mm
Weight: 254 g (8.96 oz)
Build: Glass front (Ceramic Shield 2) (folded), titanium frame & hindge (grade 5), glass back (Ceramic Shield)
SIM: · eSIM + eSIM (8 or more, max 2 at a time) - Global
· eSIM + eSIM (China)
IP68 dust tight and water resistant (immersible up to 6m for 30 min)
Stylus support

18 Fold

Dimensions: Unfolded: 163.8 x 117.8 x 5.0 mm
Folded: 83.6 x 117.8 x 10.7 mm
Weight: 219 g (7.72 oz)
Build: Glass front (Xiaomi Dragon Crystal Glass 3) (folded), plastic front (unfolded), glass back, aluminum frame
SIM: Nano-SIM + Nano-SIM
IP58/IP59 dust protected and water resistant (high pressure water jets; immersible up to 1m for 30 min)

iPhone Duo

Type: LTPO Super Retina XDR OLED120HzHDR10Dolby Vision1000 nits (typ)1600 nits (HBM)3000 nits (peak)
Size: 7.6 inches, 175.4 cm² (~90.4% screen-to-body ratio)
Resolution: 1878 x 2670 pixels (~430 ppi density)
Protection: Nano Texture finish
Anti‑reflective coating
Wide-angle OLED matte display
Small display crease
Cover display:
LTPO Super Retina XDR OLED, 120Hz, HDR10, Dolby Vision, 1000 nits (typ), 1600 nits (HBM), 3000 nits (peak)
5.4 inches, 1398 x 2034 pixels, 460 ppi
Ceramic Shield 2, Anti‑reflective coating

18 Fold

Type: LTPO AMOLED120HzHDR10+Dolby VisionHDR Vivid4000 nits (peak)
Size: 7.58 inches, 174.8 cm² (~90.6% screen-to-body ratio)
Resolution: 2364 x 1672 pixels (~382 ppi density)
Cover display:
LTPO AMOLED, 120Hz, Xiaomi Dragon Crystal Glass 3
5.38 inches, 1168 x 1712 pixels
HDR10+, Dolby Vision, HDR Vivid, 4000 nits (peak)

iPhone Duo

OS: iOS 27
Chipset: Apple A20 Pro (2 nm)
CPU: Hexa-core (2x GHz high performance + 4x GHz)
GPU: Apple GPU (7-core graphics)

18 Fold

OS: Android 17, HyperOS 4
Chipset: XRing O3 (3 nm)
CPU: 10-core 4.35 GHz
GPU: Arm G2-Ultra NX MC16

iPhone Duo

Card slot: No
Internal: 256GB 12GB RAM, 512GB 12GB RAM, 1TB 12GB RAM, 2TB 12GB RAM

18 Fold

Card slot: No
Internal: 256GB 12GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
UFS 4.1

iPhone Duo

Dual: 48 MP, f/1.6, 26mm (wide), 1/1.56", 1.0µm, PDAF, sensor-shift OIS
48 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55", 0.7µm, PDAF
Features: Dual-LED dual-tone flash, HDR (photo/panorama)
Video: 4K@24/25/30/60/100/120fps1080p@25/30/60/120/240fps10-bit HDRDolby Vision HDR (up to 120fps)ProRes3D (spatial) video/audiostereo sound rec.

18 Fold

Triple: 200 MP, f/1.7, 23mm (wide), 1/1.56", 0.5µm, PDAF, OIS
50 MP, f/2.8, 80mm (telephoto), PDAF, OIS, 3.x optical zoom
50 MP, f/2.4, 17mm (ultrawide)
Features: Laser AFcolor spectrum sensorLeica lensesLED flashHDRpanorama
Video: 8K@24fps, 4K@30/60fps (Dolby Vision), 1080p@30/60/120/960fps, gyro-EIS, OIS

iPhone Duo

Single: XX MP under display camera, f/1.8, 1080p@30/60fps video
Cover camera:
12 MP multi-aspect, f/2.2, (wide), AF
Features: HDR, Dolby Vision HDR, spatial audio, stereo sound rec.
Video: 4K@24/25/30/60fps, 1080p@25/30/60/120fps, gyro-EIS

18 Fold

Single: 16 MP, f/2.2, 21mm (wide)
Cover camera:
16 MP, f/2.2, 21mm (wide)
Features: HDR
Video: 1080p@30/60fps

iPhone Duo

Loudspeaker: Yes, with stereo speakers
3.5mm jack: No

18 Fold

Loudspeaker: Yes, with stereo speakers, Dolby Atmos
3.5mm jack: No
24-bit/192kHz Hi-Res & Hi-Res wireless audio

iPhone Duo

WLAN: Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, hotspot
Bluetooth: 6.0, A2DP, LE
Positioning: GPS (L1+L5)GLONASSGALILEOBDSQZSSNavIC
NFC: Yes
Radio: No
USB: USB Type-C 3.2 Gen 2, DisplayPort

18 Fold

WLAN: Wi-Fi 802.11 a/b/g/n/ac/6/7, dual-band
Bluetooth: 6.0, A2DP, LE, LHDC 5
Positioning: GPS (L1+L5)BDS (B1I+B1C+B1a)GALILEO (E1+E5a)QZSS (L1+L5)GLONASSNavIC
NFC: Yes
Infrared port: Yes
Radio: No
USB: USB Type-C 3.2 Gen2, OTG

iPhone Duo

Sensors: Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer
Ultra Wideband (UWB) support (gen2 chip)
Emergency SOS, Messages and Find My via satellite

18 Fold

Sensors: Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer
Ultra Wideband (UWB) support

iPhone Duo

Type: Li-Ion
Charging: Wired, PD3.2, AVS, 50% in 20 min
25W wireless MagSafe/Qi2, 50% in 30 min

18 Fold

Type: Si/C Li-Ion 6000 mAh
Charging: 67W wired, PD3.0, 50W PPS
50W wireless
Reverse wired

iPhone Duo

Colors: Night Sky, Star White
Models: A3720, A3721, A3447, A3719
Price: About 2300 EUR

18 Fold

Colors: Gray, Silver, Red, Rose gold
Price: About 1400 EUR (price in China)

Full specs: iPhone Duo Full specs: 18 Fold

Overview

Specifications

Network

Launch

Body

Display

Platform

Memory

Main Camera

Selfie camera

Sound

Comms

Features

Battery

Misc

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