Screen size
Galaxy Tab S12 UltraWinner: 14.6"+78%
S5780 Wave 5783.2"
Quick verdict
Galaxy Tab S12 Ultra leads the measured specs 18-4.
Measured wins
Galaxy Tab S12 Ultra
18
spec wins
Overall winner
Ties
1
equal specs
S5780 Wave 578
4
spec wins
Screen size
Technology
Galaxy Tab S12 Ultra
GSM / HSPA / LTE / 5G
S5780 Wave 578
GSM / HSPA
2G bands
Galaxy Tab S12 Ultra
GSM 850 / 900 / 1800 / 1900
S5780 Wave 578
GSM 850 / 900 / 1800 / 1900
3G bands
Galaxy Tab S12 Ultra
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
S5780 Wave 578
HSDPA 900 / 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
S5780 Wave 578
-
5G bands
Galaxy Tab S12 Ultra
SA/NSA/Sub6
S5780 Wave 578
-
Speed
Galaxy Tab S12 Ultra
HSPA, LTE, 5G - cellular model only
S5780 Wave 578
HSPA 3.6/0.384 Mbps
Announced
Galaxy Tab S12 Ultra
2026, September 30
S5780 Wave 578
2011, February. Released 2011, July
Status
Galaxy Tab S12 Ultra
Released Oct 7, 2026
S5780 Wave 578
Discontinued
Dimensions
Galaxy Tab S12 Ultra
326.3 x 208.5 x 5.1 mm (12.85 x 8.21 x 0.20 in)
S5780 Wave 578
107.9 x 54.9 x 12.5 mm (4.25 x 2.16 x 0.49 in)
Weight
Galaxy Tab S12 Ultra
692 g or 695 g (1.53 lb)
S5780 Wave 578
99.8 g (3.49 oz)
Build
Galaxy Tab S12 Ultra
Glass front, aluminum frame, aluminum back
S5780 Wave 578
-
SIM
Galaxy Tab S12 Ultra
Nano-SIM + eSIM (cellular model only)
S5780 Wave 578
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
S5780 Wave 578
-
Type
Galaxy Tab S12 Ultra
Dynamic AMOLED 2X, 120Hz, HDR10+, 1000 nits (HBM), 1600 nits (peak)
S5780 Wave 578
TFT, 256K colors
Size
Galaxy Tab S12 Ultra
14.6 inches, 617.8 cm2 (~90.8% screen-to-body ratio)
S5780 Wave 578
3.2 inches, 29.1 cm2 (~49.2% screen-to-body ratio)
Resolution
Galaxy Tab S12 Ultra
1848 x 2960 pixels, 16:10 ratio (~239 ppi density)
S5780 Wave 578
240 x 400 pixels, 5:3 ratio (~146 ppi density)
Other
Galaxy Tab S12 Ultra
-
S5780 Wave 578
TouchWiz UI 3.0
OS
Galaxy Tab S12 Ultra
Android 17, up to 7 major OS updates, One UI 9
S5780 Wave 578
bada 1.1
Chipset
Galaxy Tab S12 Ultra
MediaTek Dimensity 9500 (3 nm)
S5780 Wave 578
-
CPU
Galaxy Tab S12 Ultra
Octa-core (1x4.21 GHz C1-Ultra & 3x3.5 GHz C1-Premium & 4x2.7 GHz C1-Pro)
S5780 Wave 578
-
GPU
Galaxy Tab S12 Ultra
Mali-G1 Ultra MC12
S5780 Wave 578
-
Card slot
Galaxy Tab S12 Ultra
microSDXC (dedicated slot)
S5780 Wave 578
microSDHC (dedicated slot)
Internal
Galaxy Tab S12 Ultra
256GB 12GB RAM, 512GB 12GB RAM, 1TB 16GB RAM
S5780 Wave 578
100MB
Other
Galaxy Tab S12 Ultra
UFS
S5780 Wave 578
-
Dual
Galaxy Tab S12 Ultra
13 MP, f/2.0, 26mm (wide), 1/3.4", 1.0µm, AF 8 MP, f/2.2, (ultrawide)
S5780 Wave 578
-
Features
Galaxy Tab S12 Ultra
LED flash, HDR, panorama
S5780 Wave 578
-
Video
Galaxy Tab S12 Ultra
4K@30fps, 1080p@30fps
S5780 Wave 578
320p@20fps
Single
Galaxy Tab S12 Ultra
-
S5780 Wave 578
3.15 MP
Single
Galaxy Tab S12 Ultra
12 MP, f/2.4, 120˚ (ultrawide)
S5780 Wave 578
VGA
Features
Galaxy Tab S12 Ultra
HDR
S5780 Wave 578
-
Video
Galaxy Tab S12 Ultra
4K@30fps, 1080p@30fps
S5780 Wave 578
Loudspeaker
Galaxy Tab S12 Ultra
Yes, with stereo speakers (4 speakers)
S5780 Wave 578
Yes
3.5mm jack
Galaxy Tab S12 Ultra
No
S5780 Wave 578
Yes
WLAN
Galaxy Tab S12 Ultra
Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
S5780 Wave 578
Wi-Fi 802.11 b/g/n, hotspot
Bluetooth
Galaxy Tab S12 Ultra
6.0, A2DP, LE
S5780 Wave 578
3.0, A2DP
Positioning
Galaxy Tab S12 Ultra
GPS, GLONASS, BDS, GALILEO
S5780 Wave 578
GPS, A-GPS
NFC
Galaxy Tab S12 Ultra
No
S5780 Wave 578
Optional
Radio
Galaxy Tab S12 Ultra
No
S5780 Wave 578
Stereo FM radio, RDS
USB
Galaxy Tab S12 Ultra
USB Type-C 3.2, magnetic connector
S5780 Wave 578
microUSB 2.0
Sensors
Galaxy Tab S12 Ultra
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
S5780 Wave 578
Accelerometer, proximity
Other
Galaxy Tab S12 Ultra
Wireless Samsung DeX (desktop experience support)
S5780 Wave 578
SNS integration MP3/WAV/eAAC+ player MP4/H.264 player Music recognition Organizer Document viewer Photo editor Voice memo Predictive text input (T9 Trace)
Browser
Galaxy Tab S12 Ultra
-
S5780 Wave 578
WAP 2.0/xHTML, HTML
Type
Galaxy Tab S12 Ultra
Li-Po 11600 mAh
S5780 Wave 578
Removable Li-Ion 1200 mAh battery
Charging
Galaxy Tab S12 Ultra
45W wired, 100% in 95 min
S5780 Wave 578
-
Stand-by
Galaxy Tab S12 Ultra
-
S5780 Wave 578
Up to 700 h (2G) / Up to 500 h (3G)
Talk time
Galaxy Tab S12 Ultra
-
S5780 Wave 578
Up to 12 h 30 min (2G) / Up to 7 h (3G)
Colors
Galaxy Tab S12 Ultra
Gray, Silver
S5780 Wave 578
Black
Models
Galaxy Tab S12 Ultra
SM-X940, SM-X946
S5780 Wave 578
-
SAR EU
Galaxy Tab S12 Ultra
0.47 W/kg (body)
S5780 Wave 578
0.75 W/kg (head)
Price
Galaxy Tab S12 Ultra
About 1570 EUR
S5780 Wave 578
About 110 EUR
SAR
Galaxy Tab S12 Ultra
-
S5780 Wave 578
0.87 W/kg (head) 0.86 W/kg (body)