samsung
Samsung Galaxy Z Tri Fold
Model:SM-D639B, SM-D639B/DS, SM-D639U, SM-D639U1, SM-D639N, SM-D6390Sim Type:Dual Sim, GSM+GSM
Pros
Cons
General
Model
SM-D639B, SM-D639B/DS, SM-D639U, SM-D639U1, SM-D639N, SM-D6390
Sim Type
Dual Sim, GSM+GSM
Dual Sim
Yes
Sim Size
(Nano-SIM + Nano-SIM), (eSIM + eSIM) (max 2 at a time)
Device Type
Smartphone
eSIM Support
Yes
Release Date
December 02, 2025
Weight
309 g
Bezel less
No
Colors
Crafted Black
Type
Color LTPO AMOLED Screen (1B Colors)
Touch
Yes
Size
10 inches, 1584 x 2160 pixels, 120 Hz
Aspect Ratio
4:3
PPI
~ 269 PPI
Notch
Yes, Punch Hole
Screen to Body Ratio
~ 89.6%
Features
Tri-foldable Dynamic LTPO AMOLED 2X, 120Hz, HDR
Brightness
1600 nits (peak)
HDR Support
Yes
RAM
16 GB
Adaptive Refresh Rate
Yes, LTPO
Storage
512 GB
5G
Yes
GPRS
Yes
EDGE
Yes
3G
Yes
Foldable Display
Yes
4G
Yes
Dual Display
Yes, LTPO OLED, 6.5 inches, 1080 x 2520 pixels, Dynamic LTPO AMOLED 2X, 120Hz, HDR, 2600 nits (peak), Corning Gorilla Glass Ceramic 2
VoLTE
Yes, Dual Stand-By
Wifi
Yes, with wifi-hotspot
Bluetooth
Yes, v5.4, A2DP, LE
USB
Yes, USB-C
USB Features
USB on-the-go, USB Charging
GPS
Yes, with tri-band A-GPS, GLONASS, BDS, GALILEO, QZSS, NavIC
Fingerprint Sensor
Yes, Side
Vo5G
Yes
Water Resistance
Yes, 1 m upto 30 min
Dust Resistant
Yes
Sensors
Accelerometer, Gyro, Proximity, Compass, Barometer
3.5mm Headphone Jack
No
Face Unlock
Yes
IR Blaster
Yes
NFC
Yes
Rear Camera
200 MP Æ’/1.7 (Wide Angle)
24mm (wide), 1/1.3", 0.6µm, multi-directional PDAF, OIS
10 MP Æ’/2.4 (Telephoto)
67mm (telephoto), 1/3.94", 1.0µm, PDAF, OIS, 3x optical zoom
12 MP Æ’/2.2 (Ultra Wide)
13mm, 120˚ (ultrawide), 1/2.55", 1.4µm, dual pixel PDAF
Auto Focus
Yes
Video Recording
4K @ 60 fps UHD, 8K @ 30 fps UHD, 1080p @ 60 fps FHD
Flash
Yes, LED
Extra Features
Samsung Knox with Samsung Knox Vault, Dimensions Folded (HxWxD) 159.2 x 75.0 x 12.9 mm, Dimensions Unfolded (HxWxD) 159.2 x 214.1 x 3.9 mm (screen with the SIM tray) / 4.2 mm (center screen) / 4.0 mm (screen with the side button)**
Front Camera
10 MP Æ’/2.2 (Ultra Wide)
Cover Camera:
10 MP Æ’/2.2 (Wide Angle)
Punch Hole
Front Video Recording
4K @ 30 fps UHD, 1080p @ 30 fps FHD
OS
Android v16
Camera Features
HDR, Panorama
Chipset
Qualcomm Snapdragon 8 Elite
CPU
4.32 GHz, Octa Core Processor
IP Rating
IP48
GPU
Adreno 830 (1200 MHz)
Core Details
2x Prime Core@4.32 GHz & 6x Performance Core@3.53 GHz
Java
No
Browser
Yes
OIS
Yes
Custom UI
One UI 8
Email
Yes
Music
Yes
Video
Yes
FM Radio
No
Document Reader
Yes
Battery Type
Non-Removable Battery
Battery Size
5600 mAh
Fast Charging
Yes, 45W Fast Charging
Reverse Wireless Charging
Yes
Reverse Charging
Yes
Wireless Charging
Yes, 15W