Screen size
Galaxy Tab S12 UltraWinner: 14.6"+69%
Galaxy XCover 34.5"
Quick verdict
Galaxy Tab S12 Ultra leads the measured specs 19-3.
Measured wins
Galaxy Tab S12 Ultra
19
spec wins
Overall winner
Ties
1
equal specs
Galaxy XCover 3
3
spec wins
Screen size
Technology
Galaxy Tab S12 Ultra
GSM / HSPA / LTE / 5G
Galaxy XCover 3
GSM / HSPA / LTE
2G bands
Galaxy Tab S12 Ultra
GSM 850 / 900 / 1800 / 1900
Galaxy XCover 3
GSM 850 / 900 / 1800 / 1900
3G bands
Galaxy Tab S12 Ultra
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
Galaxy XCover 3
HSDPA 850 / 900 / 1900 / 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
Galaxy XCover 3
1, 3, 5, 7, 8, 20
5G bands
Galaxy Tab S12 Ultra
SA/NSA/Sub6
Galaxy XCover 3
-
Speed
Galaxy Tab S12 Ultra
HSPA, LTE, 5G - cellular model only
Galaxy XCover 3
HSPA 21.1/5.76 Mbps, LTE Cat4 150/50 Mbps
Announced
Galaxy Tab S12 Ultra
2026, September 30
Galaxy XCover 3
2015, March. Released 2015, April
Status
Galaxy Tab S12 Ultra
Released Oct 7, 2026
Galaxy XCover 3
Discontinued
Dimensions
Galaxy Tab S12 Ultra
326.3 x 208.5 x 5.1 mm (12.85 x 8.21 x 0.20 in)
Galaxy XCover 3
132.9 x 70.1 x 10 mm (5.23 x 2.76 x 0.39 in)
Weight
Galaxy Tab S12 Ultra
692 g or 695 g (1.53 lb)
Galaxy XCover 3
154 g (5.43 oz)
Build
Galaxy Tab S12 Ultra
Glass front, aluminum frame, aluminum back
Galaxy XCover 3
-
SIM
Galaxy Tab S12 Ultra
Nano-SIM + eSIM (cellular model only)
Galaxy XCover 3
Micro-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
Galaxy XCover 3
IP67 dust/water resistant (up to 1m for 30 min) MIL-STD-810G compliant
Type
Galaxy Tab S12 Ultra
Dynamic AMOLED 2X, 120Hz, HDR10+, 1000 nits (HBM), 1600 nits (peak)
Galaxy XCover 3
PLS LCD
Size
Galaxy Tab S12 Ultra
14.6 inches, 617.8 cm2 (~90.8% screen-to-body ratio)
Galaxy XCover 3
4.5 inches, 57.6 cm2 (~61.9% screen-to-body ratio)
Resolution
Galaxy Tab S12 Ultra
1848 x 2960 pixels, 16:10 ratio (~239 ppi density)
Galaxy XCover 3
480 x 800 pixels, 5:3 ratio (~207 ppi density)
OS
Galaxy Tab S12 Ultra
Android 17, up to 7 major OS updates, One UI 9
Galaxy XCover 3
Android 4.4.4 (KitKat), upgradable to 5.0 (Lollipop)
Chipset
Galaxy Tab S12 Ultra
MediaTek Dimensity 9500 (3 nm)
Galaxy XCover 3
Marvell Armada PXA1908
CPU
Galaxy Tab S12 Ultra
Octa-core (1x4.21 GHz C1-Ultra & 3x3.5 GHz C1-Premium & 4x2.7 GHz C1-Pro)
Galaxy XCover 3
Quad-core 1.2 GHz Cortex-A53
GPU
Galaxy Tab S12 Ultra
Mali-G1 Ultra MC12
Galaxy XCover 3
Vivante GC7000
Card slot
Galaxy Tab S12 Ultra
microSDXC (dedicated slot)
Galaxy XCover 3
microSDXC (dedicated slot)
Internal
Galaxy Tab S12 Ultra
256GB 12GB RAM, 512GB 12GB RAM, 1TB 16GB RAM
Galaxy XCover 3
8GB 1.5GB RAM
Other
Galaxy Tab S12 Ultra
UFS
Galaxy XCover 3
-
Dual
Galaxy Tab S12 Ultra
13 MP, f/2.0, 26mm (wide), 1/3.4", 1.0µm, AF 8 MP, f/2.2, (ultrawide)
Galaxy XCover 3
-
Features
Galaxy Tab S12 Ultra
LED flash, HDR, panorama
Galaxy XCover 3
LED flash
Video
Galaxy Tab S12 Ultra
4K@30fps, 1080p@30fps
Galaxy XCover 3
720p@30fps
Single
Galaxy Tab S12 Ultra
-
Galaxy XCover 3
5 MP, AF
Single
Galaxy Tab S12 Ultra
12 MP, f/2.4, 120˚ (ultrawide)
Galaxy XCover 3
2 MP
Features
Galaxy Tab S12 Ultra
HDR
Galaxy XCover 3
-
Video
Galaxy Tab S12 Ultra
4K@30fps, 1080p@30fps
Galaxy XCover 3
Loudspeaker
Galaxy Tab S12 Ultra
Yes, with stereo speakers (4 speakers)
Galaxy XCover 3
Yes
3.5mm jack
Galaxy Tab S12 Ultra
No
Galaxy XCover 3
Yes
WLAN
Galaxy Tab S12 Ultra
Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
Galaxy XCover 3
Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
Bluetooth
Galaxy Tab S12 Ultra
6.0, A2DP, LE
Galaxy XCover 3
4.0, A2DP
Positioning
Galaxy Tab S12 Ultra
GPS, GLONASS, BDS, GALILEO
Galaxy XCover 3
GPS, GLONASS
NFC
Galaxy Tab S12 Ultra
No
Galaxy XCover 3
Yes
Radio
Galaxy Tab S12 Ultra
No
Galaxy XCover 3
FM radio
USB
Galaxy Tab S12 Ultra
USB Type-C 3.2, magnetic connector
Galaxy XCover 3
microUSB 2.0
Sensors
Galaxy Tab S12 Ultra
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Galaxy XCover 3
Accelerometer, proximity, compass
Other
Galaxy Tab S12 Ultra
Wireless Samsung DeX (desktop experience support)
Galaxy XCover 3
-
Type
Galaxy Tab S12 Ultra
Li-Po 11600 mAh
Galaxy XCover 3
Li-Ion 2200 mAh, removable
Charging
Galaxy Tab S12 Ultra
45W wired, 100% in 95 min
Galaxy XCover 3
-
Talk time
Galaxy Tab S12 Ultra
-
Galaxy XCover 3
Up to 10 h (3G)
Music play
Galaxy Tab S12 Ultra
-
Galaxy XCover 3
Up to 85 h
Colors
Galaxy Tab S12 Ultra
Gray, Silver
Galaxy XCover 3
Gray
Models
Galaxy Tab S12 Ultra
SM-X940, SM-X946
Galaxy XCover 3
SM-G388F, R3
SAR EU
Galaxy Tab S12 Ultra
0.47 W/kg (body)
Galaxy XCover 3
0.71 W/kg (head) 0.39 W/kg (body)
Price
Galaxy Tab S12 Ultra
About 1570 EUR
Galaxy XCover 3
About 220 EUR
SAR
Galaxy Tab S12 Ultra
-
Galaxy XCover 3
0.95 W/kg (head) 1.01 W/kg (body)