Screen size
Galaxy Tab S12 UltraWinner: 14.6"+78%
T939 Behold 23.2"
Quick verdict
Galaxy Tab S12 Ultra leads the measured specs 21-1.
Measured wins
Galaxy Tab S12 Ultra
21
spec wins
Overall winner
Ties
1
equal specs
T939 Behold 2
1
spec wins
Screen size
Technology
Galaxy Tab S12 Ultra
GSM / HSPA / LTE / 5G
T939 Behold 2
GSM / HSPA
2G bands
Galaxy Tab S12 Ultra
GSM 850 / 900 / 1800 / 1900
T939 Behold 2
GSM 850 / 900 / 1800 / 1900
3G bands
Galaxy Tab S12 Ultra
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
T939 Behold 2
HSDPA 1700 / 2100
4G bands
Galaxy Tab S12 Ultra
LTE
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
NFC
3.5mm jack
SD card
equal specsStereo speakers
T939 Behold 2
-
5G bands
Galaxy Tab S12 Ultra
SA/NSA/Sub6
T939 Behold 2
-
Speed
Galaxy Tab S12 Ultra
HSPA, LTE, 5G - cellular model only
T939 Behold 2
HSPA
Announced
Galaxy Tab S12 Ultra
2026, September 30
T939 Behold 2
2009, October. Released 2009, November
Status
Galaxy Tab S12 Ultra
Released Oct 7, 2026
T939 Behold 2
Discontinued
Dimensions
Galaxy Tab S12 Ultra
326.3 x 208.5 x 5.1 mm (12.85 x 8.21 x 0.20 in)
T939 Behold 2
116.8 x 55.9 x 12.2 mm (4.60 x 2.20 x 0.48 in)
Weight
Galaxy Tab S12 Ultra
692 g or 695 g (1.53 lb)
T939 Behold 2
119.7 (4.20 oz)
Build
Galaxy Tab S12 Ultra
Glass front, aluminum frame, aluminum back
T939 Behold 2
-
SIM
Galaxy Tab S12 Ultra
Nano-SIM + eSIM (cellular model only)
T939 Behold 2
Mini-SIM
Other
Galaxy Tab S12 Ultra
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min) Stylus support Enhanced Armor Aluminum
T939 Behold 2
-
Type
Galaxy Tab S12 Ultra
Dynamic AMOLED 2X, 120Hz, HDR10+, 1000 nits (HBM), 1600 nits (peak)
T939 Behold 2
AMOLED (65K effective)
Size
Galaxy Tab S12 Ultra
14.6 inches, 617.8 cm2 (~90.8% screen-to-body ratio)
T939 Behold 2
3.2 inches, 30.5 cm2 (~46.7% screen-to-body ratio)
Resolution
Galaxy Tab S12 Ultra
1848 x 2960 pixels, 16:10 ratio (~239 ppi density)
T939 Behold 2
320 x 480 pixels, 3:2 ratio (~180 ppi density)
Protection
Galaxy Tab S12 Ultra
-
T939 Behold 2
Corning Gorilla Glass
OS
Galaxy Tab S12 Ultra
Android 17, up to 7 major OS updates, One UI 9
T939 Behold 2
Android 1.5 (Cupcake)
Chipset
Galaxy Tab S12 Ultra
MediaTek Dimensity 9500 (3 nm)
T939 Behold 2
-
CPU
Galaxy Tab S12 Ultra
Octa-core (1x4.21 GHz C1-Ultra & 3x3.5 GHz C1-Premium & 4x2.7 GHz C1-Pro)
T939 Behold 2
-
GPU
Galaxy Tab S12 Ultra
Mali-G1 Ultra MC12
T939 Behold 2
-
Card slot
Galaxy Tab S12 Ultra
microSDXC (dedicated slot)
T939 Behold 2
microSDHC (dedicated slot), 2 GB included
Internal
Galaxy Tab S12 Ultra
256GB 12GB RAM, 512GB 12GB RAM, 1TB 16GB RAM
T939 Behold 2
200MB
Other
Galaxy Tab S12 Ultra
UFS
T939 Behold 2
-
Dual
Galaxy Tab S12 Ultra
13 MP, f/2.0, 26mm (wide), 1/3.4", 1.0µm, AF 8 MP, f/2.2, (ultrawide)
T939 Behold 2
-
Features
Galaxy Tab S12 Ultra
LED flash, HDR, panorama
T939 Behold 2
LED flash
Video
Galaxy Tab S12 Ultra
4K@30fps, 1080p@30fps
T939 Behold 2
Yes
Single
Galaxy Tab S12 Ultra
-
T939 Behold 2
5 MP, AF
Single
Galaxy Tab S12 Ultra
12 MP, f/2.4, 120˚ (ultrawide)
T939 Behold 2
-
Features
Galaxy Tab S12 Ultra
HDR
T939 Behold 2
-
Video
Galaxy Tab S12 Ultra
4K@30fps, 1080p@30fps
T939 Behold 2
-
Other
Galaxy Tab S12 Ultra
-
T939 Behold 2
No
Loudspeaker
Galaxy Tab S12 Ultra
Yes, with stereo speakers (4 speakers)
T939 Behold 2
Yes
3.5mm jack
Galaxy Tab S12 Ultra
No
T939 Behold 2
Yes
WLAN
Galaxy Tab S12 Ultra
Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
T939 Behold 2
Wi-Fi 802.11 b/g
Bluetooth
Galaxy Tab S12 Ultra
6.0, A2DP, LE
T939 Behold 2
2.1, A2DP
Positioning
Galaxy Tab S12 Ultra
GPS, GLONASS, BDS, GALILEO
T939 Behold 2
A-GPS only; AT&T Navigator
NFC
Galaxy Tab S12 Ultra
No
T939 Behold 2
-
Radio
Galaxy Tab S12 Ultra
No
T939 Behold 2
No
USB
Galaxy Tab S12 Ultra
USB Type-C 3.2, magnetic connector
T939 Behold 2
2.0
Sensors
Galaxy Tab S12 Ultra
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
T939 Behold 2
Accelerometer, proximity
Other
Galaxy Tab S12 Ultra
Wireless Samsung DeX (desktop experience support)
T939 Behold 2
MP4/H.264/WMV player MP3/WAV/eAAC+/WMA player Photo editor Organizer Voice memo Predictive text input
Browser
Galaxy Tab S12 Ultra
-
T939 Behold 2
HTML
Type
Galaxy Tab S12 Ultra
Li-Po 11600 mAh
T939 Behold 2
Removable Li-Ion 1500 mAh battery
Charging
Galaxy Tab S12 Ultra
45W wired, 100% in 95 min
T939 Behold 2
-
Stand-by
Galaxy Tab S12 Ultra
-
T939 Behold 2
Up to 360 h
Talk time
Galaxy Tab S12 Ultra
-
T939 Behold 2
Up to 6 h
Colors
Galaxy Tab S12 Ultra
Gray, Silver
T939 Behold 2
Black
Models
Galaxy Tab S12 Ultra
SM-X940, SM-X946
T939 Behold 2
-
SAR EU
Galaxy Tab S12 Ultra
0.47 W/kg (body)
T939 Behold 2
0.59 W/kg (head)
Price
Galaxy Tab S12 Ultra
About 1570 EUR
T939 Behold 2
About 90 EUR
SAR
Galaxy Tab S12 Ultra
-
T939 Behold 2
0.67 W/kg (head) 0.66 W/kg (body)