Screen size
Galaxy Tab S12 UltraWinner: 14.6"
Z540—
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
Z540
1
spec wins
Screen size
Technology
Galaxy Tab S12 Ultra
GSM / HSPA / LTE / 5G
Z540
GSM / UMTS
2G bands
Galaxy Tab S12 Ultra
GSM 850 / 900 / 1800 / 1900
Z540
GSM 900 / 1800 / 1900
3G bands
Galaxy Tab S12 Ultra
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
Z540
UMTS 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
Stereo speakers
equal specsZ540
-
5G bands
Galaxy Tab S12 Ultra
SA/NSA/Sub6
Z540
-
Speed
Galaxy Tab S12 Ultra
HSPA, LTE, 5G - cellular model only
Z540
Yes, 384 kbps
Announced
Galaxy Tab S12 Ultra
2026, September 30
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2005, Q4
Status
Galaxy Tab S12 Ultra
Released Oct 7, 2026
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Discontinued
Dimensions
Galaxy Tab S12 Ultra
326.3 x 208.5 x 5.1 mm (12.85 x 8.21 x 0.20 in)
Z540
99 x 50.5 x 14.9 mm (3.90 x 1.99 x 0.59 in)
Weight
Galaxy Tab S12 Ultra
692 g or 695 g (1.53 lb)
Z540
105 g (3.70 oz)
Build
Galaxy Tab S12 Ultra
Glass front, aluminum frame, aluminum back
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-
SIM
Galaxy Tab S12 Ultra
Nano-SIM + eSIM (cellular model only)
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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
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-
Type
Galaxy Tab S12 Ultra
Dynamic AMOLED 2X, 120Hz, HDR10+, 1000 nits (HBM), 1600 nits (peak)
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TFT, 256K colors
Size
Galaxy Tab S12 Ultra
14.6 inches, 617.8 cm2 (~90.8% screen-to-body ratio)
Z540
Resolution
Galaxy Tab S12 Ultra
1848 x 2960 pixels, 16:10 ratio (~239 ppi density)
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240 x 320 pixels, 4:3 ratio
Other
Galaxy Tab S12 Ultra
-
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Second external display TFT, 65K colors (128 x 128 pixels)
OS
Galaxy Tab S12 Ultra
Android 17, up to 7 major OS updates, One UI 9
Z540
-
Chipset
Galaxy Tab S12 Ultra
MediaTek Dimensity 9500 (3 nm)
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-
CPU
Galaxy Tab S12 Ultra
Octa-core (1x4.21 GHz C1-Ultra & 3x3.5 GHz C1-Premium & 4x2.7 GHz C1-Pro)
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-
GPU
Galaxy Tab S12 Ultra
Mali-G1 Ultra MC12
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-
Card slot
Galaxy Tab S12 Ultra
microSDXC (dedicated slot)
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No
Internal
Galaxy Tab S12 Ultra
256GB 12GB RAM, 512GB 12GB RAM, 1TB 16GB RAM
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140MB
Other
Galaxy Tab S12 Ultra
UFS
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-
Phonebook
Galaxy Tab S12 Ultra
-
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1000 entries, Photocall
Call records
Galaxy Tab S12 Ultra
-
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30 dialed, 30 received, 30 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)
Z540
-
Features
Galaxy Tab S12 Ultra
LED flash, HDR, panorama
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-
Video
Galaxy Tab S12 Ultra
4K@30fps, 1080p@30fps
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QCIF
Single
Galaxy Tab S12 Ultra
-
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1.3 MP
Single
Galaxy Tab S12 Ultra
12 MP, f/2.4, 120˚ (ultrawide)
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VGA videocall camera
Features
Galaxy Tab S12 Ultra
HDR
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-
Video
Galaxy Tab S12 Ultra
4K@30fps, 1080p@30fps
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Loudspeaker
Galaxy Tab S12 Ultra
Yes, with stereo speakers (4 speakers)
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Yes, with stereo speakers
3.5mm jack
Galaxy Tab S12 Ultra
No
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No
Alert types
Galaxy Tab S12 Ultra
-
Z540
Vibration; Downloadable polyphonic, MP3 ringtones
Other
Galaxy Tab S12 Ultra
-
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Dual speaker
WLAN
Galaxy Tab S12 Ultra
Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
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No
Bluetooth
Galaxy Tab S12 Ultra
6.0, A2DP, LE
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Yes
Positioning
Galaxy Tab S12 Ultra
GPS, GLONASS, BDS, GALILEO
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No
NFC
Galaxy Tab S12 Ultra
No
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-
Radio
Galaxy Tab S12 Ultra
No
Z540
No
USB
Galaxy Tab S12 Ultra
USB Type-C 3.2, magnetic connector
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Proprietary
Sensors
Galaxy Tab S12 Ultra
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
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Other
Galaxy Tab S12 Ultra
Wireless Samsung DeX (desktop experience support)
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Video telephony MP3/AAC/AAC++/WMA player Predictive text input Organizer Voice memo
Messaging
Galaxy Tab S12 Ultra
-
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SMS, MMS, Email
Browser
Galaxy Tab S12 Ultra
-
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WAP 2.0/xHTML
Games
Galaxy Tab S12 Ultra
-
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Yes + Java downloadable
Java
Galaxy Tab S12 Ultra
-
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Yes, MIDP 2.0
Type
Galaxy Tab S12 Ultra
Li-Po 11600 mAh
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Removable Li-Ion 880 mAh battery
Charging
Galaxy Tab S12 Ultra
45W wired, 100% in 95 min
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-
Stand-by
Galaxy Tab S12 Ultra
-
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Up to 200 h
Talk time
Galaxy Tab S12 Ultra
-
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Up to 2 h 30 min
Colors
Galaxy Tab S12 Ultra
Gray, Silver
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Black
Models
Galaxy Tab S12 Ultra
SM-X940, SM-X946
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-
SAR EU
Galaxy Tab S12 Ultra
0.47 W/kg (body)
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0.53 W/kg (head)
Price
Galaxy Tab S12 Ultra
About 1570 EUR
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-
SAR
Galaxy Tab S12 Ultra
-
Z540
0.33 W/kg (head) 0.51 W/kg (body)