Screen size
Galaxy Tab S12 UltraWinner: 14.6"+85%
Z6302.2"
Quick verdict
Galaxy Tab S12 Ultra leads the measured specs 20-1.
Measured wins
Galaxy Tab S12 Ultra
20
spec wins
Overall winner
Ties
2
equal specs
Z630
1
spec wins
Screen size
Technology
Galaxy Tab S12 Ultra
GSM / HSPA / LTE / 5G
Z630
GSM / HSPA
2G bands
Galaxy Tab S12 Ultra
GSM 850 / 900 / 1800 / 1900
Z630
GSM 900 / 1800 / 1900
3G bands
Galaxy Tab S12 Ultra
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
Z630
HSDPA 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
equal specsSD card
equal specsStereo speakers
Z630
-
5G bands
Galaxy Tab S12 Ultra
SA/NSA/Sub6
Z630
-
Speed
Galaxy Tab S12 Ultra
HSPA, LTE, 5G - cellular model only
Z630
HSPA
Announced
Galaxy Tab S12 Ultra
2026, September 30
Z630
2007, Q2
Status
Galaxy Tab S12 Ultra
Released Oct 7, 2026
Z630
Discontinued
Dimensions
Galaxy Tab S12 Ultra
326.3 x 208.5 x 5.1 mm (12.85 x 8.21 x 0.20 in)
Z630
101 x 52 x 12.5 mm (3.98 x 2.05 x 0.49 in)
Weight
Galaxy Tab S12 Ultra
692 g or 695 g (1.53 lb)
Z630
95 g (3.35 oz)
Build
Galaxy Tab S12 Ultra
Glass front, aluminum frame, aluminum back
Z630
-
SIM
Galaxy Tab S12 Ultra
Nano-SIM + eSIM (cellular model only)
Z630
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
Z630
-
Type
Galaxy Tab S12 Ultra
Dynamic AMOLED 2X, 120Hz, HDR10+, 1000 nits (HBM), 1600 nits (peak)
Z630
TFT, 256K colors
Size
Galaxy Tab S12 Ultra
14.6 inches, 617.8 cm2 (~90.8% screen-to-body ratio)
Z630
2.2 inches, 15.0 cm2 (~28.5% screen-to-body ratio)
Resolution
Galaxy Tab S12 Ultra
1848 x 2960 pixels, 16:10 ratio (~239 ppi density)
Z630
240 x 320 pixels, 4:3 ratio (~182 ppi density)
OS
Galaxy Tab S12 Ultra
Android 17, up to 7 major OS updates, One UI 9
Z630
-
Chipset
Galaxy Tab S12 Ultra
MediaTek Dimensity 9500 (3 nm)
Z630
-
CPU
Galaxy Tab S12 Ultra
Octa-core (1x4.21 GHz C1-Ultra & 3x3.5 GHz C1-Premium & 4x2.7 GHz C1-Pro)
Z630
-
GPU
Galaxy Tab S12 Ultra
Mali-G1 Ultra MC12
Z630
-
Card slot
Galaxy Tab S12 Ultra
microSDXC (dedicated slot)
Z630
microSD (dedicated slot)
Internal
Galaxy Tab S12 Ultra
256GB 12GB RAM, 512GB 12GB RAM, 1TB 16GB RAM
Z630
28MB
Other
Galaxy Tab S12 Ultra
UFS
Z630
-
Phonebook
Galaxy Tab S12 Ultra
-
Z630
1000 entries, Photocall
Call records
Galaxy Tab S12 Ultra
-
Z630
20 dialed, 20 received, 20 missed calls
Dual
Galaxy Tab S12 Ultra
13 MP, f/2.0, 26mm (wide), 1/3.4", 1.0µm, AF 8 MP, f/2.2, (ultrawide)
Z630
-
Features
Galaxy Tab S12 Ultra
LED flash, HDR, panorama
Z630
LED flash
Video
Galaxy Tab S12 Ultra
4K@30fps, 1080p@30fps
Z630
320p
Single
Galaxy Tab S12 Ultra
-
Z630
2 MP
Single
Galaxy Tab S12 Ultra
12 MP, f/2.4, 120˚ (ultrawide)
Z630
VGA videocall camera
Features
Galaxy Tab S12 Ultra
HDR
Z630
-
Video
Galaxy Tab S12 Ultra
4K@30fps, 1080p@30fps
Z630
Loudspeaker
Galaxy Tab S12 Ultra
Yes, with stereo speakers (4 speakers)
Z630
Yes
3.5mm jack
Galaxy Tab S12 Ultra
No
Z630
No
Alert types
Galaxy Tab S12 Ultra
-
Z630
Vibration; Downloadable polyphonic, MP3 ringtones
WLAN
Galaxy Tab S12 Ultra
Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
Z630
No
Bluetooth
Galaxy Tab S12 Ultra
6.0, A2DP, LE
Z630
2.0, A2DP
Positioning
Galaxy Tab S12 Ultra
GPS, GLONASS, BDS, GALILEO
Z630
No
NFC
Galaxy Tab S12 Ultra
No
Z630
-
Radio
Galaxy Tab S12 Ultra
No
Z630
No
USB
Galaxy Tab S12 Ultra
USB Type-C 3.2, magnetic connector
Z630
1.1
Sensors
Galaxy Tab S12 Ultra
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Z630
Other
Galaxy Tab S12 Ultra
Wireless Samsung DeX (desktop experience support)
Z630
Video telephony & streaming MP3/AAC/AAC+/e-AAC+/WMA player Predictive text input Document viewer (Word, Excel, PowerPoint, PDF) Organizer Voice memo
Messaging
Galaxy Tab S12 Ultra
-
Z630
SMS, MMS, Email
Browser
Galaxy Tab S12 Ultra
-
Z630
WAP 2.0/xHTML
Games
Galaxy Tab S12 Ultra
-
Z630
Yes + downloadable
Java
Galaxy Tab S12 Ultra
-
Z630
Yes, MIDP 2.0
Type
Galaxy Tab S12 Ultra
Li-Po 11600 mAh
Z630
Removable Li-Ion 800 mAh battery
Charging
Galaxy Tab S12 Ultra
45W wired, 100% in 95 min
Z630
-
Stand-by
Galaxy Tab S12 Ultra
-
Z630
Up to 200 h
Talk time
Galaxy Tab S12 Ultra
-
Z630
Up to 3 h 30 min
Colors
Galaxy Tab S12 Ultra
Gray, Silver
Z630
Silver
Models
Galaxy Tab S12 Ultra
SM-X940, SM-X946
Z630
-
SAR EU
Galaxy Tab S12 Ultra
0.47 W/kg (body)
Z630
0.96 W/kg (head)
Price
Galaxy Tab S12 Ultra
About 1570 EUR
Z630
-