Screen size
Galaxy Tab S12 UltraWinner: 14.6"+86%
Z5502.0"
Quick verdict
Galaxy Tab S12 Ultra leads the measured specs 19-1.
Measured wins
Galaxy Tab S12 Ultra
19
spec wins
Overall winner
Ties
3
equal specs
Z550
1
spec wins
Screen size
Technology
Galaxy Tab S12 Ultra
GSM / HSPA / LTE / 5G
Z550
GSM / UMTS
2G bands
Galaxy Tab S12 Ultra
GSM 850 / 900 / 1800 / 1900
Z550
GSM 900 / 1800 / 1900
3G bands
Galaxy Tab S12 Ultra
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
Z550
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
equal specsStereo speakers
equal specsZ550
-
5G bands
Galaxy Tab S12 Ultra
SA/NSA/Sub6
Z550
-
Speed
Galaxy Tab S12 Ultra
HSPA, LTE, 5G - cellular model only
Z550
Yes, 384 kbps
Announced
Galaxy Tab S12 Ultra
2026, September 30
Z550
2006, March
Status
Galaxy Tab S12 Ultra
Released Oct 7, 2026
Z550
Discontinued
Dimensions
Galaxy Tab S12 Ultra
326.3 x 208.5 x 5.1 mm (12.85 x 8.21 x 0.20 in)
Z550
93 x 45 x 17.5 mm (3.66 x 1.77 x 0.69 in)
Weight
Galaxy Tab S12 Ultra
692 g or 695 g (1.53 lb)
Z550
95 g (3.35 oz)
Build
Galaxy Tab S12 Ultra
Glass front, aluminum frame, aluminum back
Z550
-
SIM
Galaxy Tab S12 Ultra
Nano-SIM + eSIM (cellular model only)
Z550
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
Z550
-
Type
Galaxy Tab S12 Ultra
Dynamic AMOLED 2X, 120Hz, HDR10+, 1000 nits (HBM), 1600 nits (peak)
Z550
TFT, 256K colors
Size
Galaxy Tab S12 Ultra
14.6 inches, 617.8 cm2 (~90.8% screen-to-body ratio)
Z550
2.0 inches, 30 x 40 mm, 12.4 cm2 (~29.6% screen-to-body ratio)
Resolution
Galaxy Tab S12 Ultra
1848 x 2960 pixels, 16:10 ratio (~239 ppi density)
Z550
240 x 320 pixels, 4:3 ratio (~200 ppi density)
OS
Galaxy Tab S12 Ultra
Android 17, up to 7 major OS updates, One UI 9
Z550
-
Chipset
Galaxy Tab S12 Ultra
MediaTek Dimensity 9500 (3 nm)
Z550
-
CPU
Galaxy Tab S12 Ultra
Octa-core (1x4.21 GHz C1-Ultra & 3x3.5 GHz C1-Premium & 4x2.7 GHz C1-Pro)
Z550
-
GPU
Galaxy Tab S12 Ultra
Mali-G1 Ultra MC12
Z550
-
Card slot
Galaxy Tab S12 Ultra
microSDXC (dedicated slot)
Z550
microSD (dedicated slot)
Internal
Galaxy Tab S12 Ultra
256GB 12GB RAM, 512GB 12GB RAM, 1TB 16GB RAM
Z550
138MB
Other
Galaxy Tab S12 Ultra
UFS
Z550
-
Phonebook
Galaxy Tab S12 Ultra
-
Z550
Yes
Call records
Galaxy Tab S12 Ultra
-
Z550
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)
Z550
-
Features
Galaxy Tab S12 Ultra
LED flash, HDR, panorama
Z550
-
Video
Galaxy Tab S12 Ultra
4K@30fps, 1080p@30fps
Z550
Yes
Single
Galaxy Tab S12 Ultra
-
Z550
2 MP
Single
Galaxy Tab S12 Ultra
12 MP, f/2.4, 120˚ (ultrawide)
Z550
Videocall camera
Features
Galaxy Tab S12 Ultra
HDR
Z550
-
Video
Galaxy Tab S12 Ultra
4K@30fps, 1080p@30fps
Z550
Loudspeaker
Galaxy Tab S12 Ultra
Yes, with stereo speakers (4 speakers)
Z550
Yes, with stereo speakers
3.5mm jack
Galaxy Tab S12 Ultra
No
Z550
No
Alert types
Galaxy Tab S12 Ultra
-
Z550
Vibration; Downloadable polyphonic, MP3 ringtones
Other
Galaxy Tab S12 Ultra
-
Z550
Dual speaker
WLAN
Galaxy Tab S12 Ultra
Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
Z550
No
Bluetooth
Galaxy Tab S12 Ultra
6.0, A2DP, LE
Z550
2.0, A2DP
Positioning
Galaxy Tab S12 Ultra
GPS, GLONASS, BDS, GALILEO
Z550
No
NFC
Galaxy Tab S12 Ultra
No
Z550
-
Radio
Galaxy Tab S12 Ultra
No
Z550
No
USB
Galaxy Tab S12 Ultra
USB Type-C 3.2, magnetic connector
Z550
Proprietary
Sensors
Galaxy Tab S12 Ultra
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Z550
Other
Galaxy Tab S12 Ultra
Wireless Samsung DeX (desktop experience support)
Z550
Video telephony & streaming MP3/AAC/ACC+ player Predictive text input Document viewer (Word, Excel, PowerPoint, PDF) Organizer
Messaging
Galaxy Tab S12 Ultra
-
Z550
SMS, EMS, MMS, Email
Browser
Galaxy Tab S12 Ultra
-
Z550
WAP 2.0/xHTML
Games
Galaxy Tab S12 Ultra
-
Z550
Yes + downloadable
Java
Galaxy Tab S12 Ultra
-
Z550
Yes, MIDP 2.0
Type
Galaxy Tab S12 Ultra
Li-Po 11600 mAh
Z550
Removable battery
Charging
Galaxy Tab S12 Ultra
45W wired, 100% in 95 min
Z550
-
Colors
Galaxy Tab S12 Ultra
Gray, Silver
Z550
Models
Galaxy Tab S12 Ultra
SM-X940, SM-X946
Z550
-
SAR EU
Galaxy Tab S12 Ultra
0.47 W/kg (body)
Z550
-
Price
Galaxy Tab S12 Ultra
About 1570 EUR
Z550
-