Apple iPhone Duo (A3720, A3721, A3447, A3719, iPhone19) — Full Specifications & TAC Codes

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Creator: unlock.cx

Released October 23, 2026. Supported model numbers: A3720, A3721, A3447, A3719, iPhone19. 46 hardware specification entries and carrier unlock services on unlock.cx.

Apple iPhone Duo Model Numbers & Regional Identifiers

Search or verify any of these hardware model codes on unlock.cx for IMEI check, carrier lock status, and factory unlock eligibility:

Apple iPhone DuoA3720 Apple iPhone DuoA3721 Apple iPhone DuoA3447 Apple iPhone DuoA3719 Apple iPhone DuoiPhone19

Battery

Charging: Wired, PD3.2, AVS, 50% in 20 min 25W wireless MagSafe/Qi2, 50% in 30 min
Type: Li-Ion 4883 mAh

Body

Build

Glass front (Ceramic Shield 2) (folded), titanium frame & hindge (grade 5), glass back (Ceramic Shield)

Dimensions

Unfolded: 117.8 x 164.6 x 5.2 mm Folded: 117.8 x 84.1 x 11.3 mm

SIM

· eSIM + eSIM (8 or more, max 2 at a time) - Global · eSIM + eSIM (China)

Weight

254 g (8.96 oz)

Comms

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

Display

Protection: Nano Texture finish
Resolution: 1878 x 2670 pixels (~430 ppi density)
Size: 7.6 inches, 175.4 cm 2 (~90.4% screen-to-body ratio)
Type: LTPO Super Retina XDR OLED, 120Hz, HDR10, Dolby Vision, 1000 nits (typ), 1600 nits (HBM), 3000 nits (peak)

EU LABEL

Battery: 51:30h endurance, 1000 cycles
Energy: Class A
Free fall: Class B (140 falls)
Repairability: Class C

Features

Sensors: Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer

Launch

Announced: 2026, September 09
Status: Available. Released 2026, October 23

Main Camera

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@24/25/30/60/100/120fps, 1080p@25/30/60/120/240fps, 10-bit HDR, Dolby Vision HDR (up to 120fps), ProRes, 3D (spatial) video/audio, stereo sound rec.

Memory

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

Misc

Colors: Night Sky, Star White
Models: A3720, A3721, A3447, A3719, iPhone19,4
Price: £ 1,999.00 / € 2,299.00

Network

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
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
Speed: HSPA, LTE, 5G
Technology: GSM / HSPA / LTE / 5G

Platform

CPU: Hexa-core (2x GHz high performance + 4x GHz)
Chipset: Apple A20 Pro (2 nm)
GPU: Apple GPU (7-core graphics)
OS: iOS 27.1, upgradable to iOS 27.2

Selfie camera

Features: HDR, Dolby Vision HDR, spatial audio, stereo sound rec.
Single: 4 MP, f/1.8, 22mm (wide), under display camera (1080p@30/60fps) Cover camera: 12 MP multi-aspect, f/2.2, (wide), AF
Video: 4K@24/25/30/60fps, 1080p@25/30/60/120fps, gyro-EIS

Sound

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