Screen size
Galaxy S25 Ultra6.9"
Galaxy Tab S12 UltraWinner: 14.6"+53%
Quick verdict
Galaxy S25 Ultra and Galaxy Tab S12 Ultra are close on the measured specs.
Measured wins
Galaxy S25 Ultra
6
spec wins
Ties
11
equal specs
Galaxy Tab S12 Ultra
6
spec wins
Screen size
Technology
Galaxy S25 Ultra
GSM / CDMA / HSPA / EVDO / LTE / 5G
Galaxy Tab S12 Ultra
GSM / HSPA / LTE / 5G
2G bands
Galaxy S25 Ultra
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900 & TD-SCDMA
Galaxy Tab S12 Ultra
GSM 850 / 900 / 1800 / 1900
3G bands
Galaxy S25 Ultra
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 , CDMA2000 1xEV-DO
Galaxy Tab S12 Ultra
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
Galaxy S25 Ultra
Resolution
Refresh rate
equal specsPeak brightness
Pixel density
CPU speed
RAM
equal specsStorage
equal specsMain camera
Front camera
equal specsBattery
Wired charging
equal specsWeight
Thickness
IP rating
equal specsWi‑Fi
equal specsBluetooth
USB
equal specs5G support
equal specsNFC
3.5mm jack
equal specsSD card
Stereo speakers
equal specs1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - International, 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 48, 66, 71 - USA unlocked
Galaxy Tab S12 Ultra
LTE
5G bands
Galaxy S25 Ultra
1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 66, 75, 77, 78 SA/NSA/Sub6 - International, 1, 2, 5, 7, 25, 28, 41, 66, 71, 77, 78, 257, 258, 260, 261 SA/NSA/Sub6/mmWave - USA unlocked
Galaxy Tab S12 Ultra
SA/NSA/Sub6
Speed
Galaxy S25 Ultra
HSPA, LTE (up to 7CA), 5G
Galaxy Tab S12 Ultra
HSPA, LTE, 5G - cellular model only
Announced
Galaxy S25 Ultra
2025, January 22
Galaxy Tab S12 Ultra
2026, September 30
Status
Galaxy S25 Ultra
Available. Released 2025, February 03
Galaxy Tab S12 Ultra
Released Oct 7, 2026
Dimensions
Galaxy S25 Ultra
162.8 x 77.6 x 8.2 mm (6.41 x 3.06 x 0.32 in)
Galaxy Tab S12 Ultra
326.3 x 208.5 x 5.1 mm (12.85 x 8.21 x 0.20 in)
Weight
Galaxy S25 Ultra
218 g (7.69 oz)
Galaxy Tab S12 Ultra
692 g or 695 g (1.53 lb)
Build
Galaxy S25 Ultra
Glass front (Corning Gorilla Armor 2), glass back (Gorilla Glass Victus 2), titanium frame (grade 5)
Galaxy Tab S12 Ultra
Glass front, aluminum frame, aluminum back
SIM
Galaxy S25 Ultra
· Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time) - INT· Nano-SIM + eSIM + eSIM (max 2 at a time) - USA· Nano-SIM + Nano-SIM - CN
Galaxy Tab S12 Ultra
Nano-SIM + eSIM (cellular model only)
Other
Galaxy S25 Ultra
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min) Stylus
Galaxy Tab S12 Ultra
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min) Stylus support Enhanced Armor Aluminum
Type
Galaxy S25 Ultra
Dynamic LTPO AMOLED 2X, 120Hz, HDR10+, 2600 nits (peak)
Galaxy Tab S12 Ultra
Dynamic AMOLED 2X, 120Hz, HDR10+, 1000 nits (HBM), 1600 nits (peak)
Size
Galaxy S25 Ultra
6.9 inches, 116.9 cm2 (~92.5% screen-to-body ratio)
Galaxy Tab S12 Ultra
14.6 inches, 617.8 cm2 (~90.8% screen-to-body ratio)
Resolution
Galaxy S25 Ultra
1440 x 3120 pixels, 19.5:9 ratio (~498 ppi density)
Galaxy Tab S12 Ultra
1848 x 2960 pixels, 16:10 ratio (~239 ppi density)
Protection
Galaxy S25 Ultra
Corning Gorilla Armor 2, Mohs level 6
Galaxy Tab S12 Ultra
-
Other
Galaxy S25 Ultra
DX anti-reflective coating
Galaxy Tab S12 Ultra
-
OS
Galaxy S25 Ultra
Android 15, up to 7 major Android upgrades, One UI 8
Galaxy Tab S12 Ultra
Android 17, up to 7 major OS updates, One UI 9
Chipset
Galaxy S25 Ultra
Qualcomm SM8750-AC Snapdragon 8 Elite (3 nm)
Galaxy Tab S12 Ultra
MediaTek Dimensity 9500 (3 nm)
CPU
Galaxy S25 Ultra
Octa-core (2x4.47 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
Galaxy Tab S12 Ultra
Octa-core (1x4.21 GHz C1-Ultra & 3x3.5 GHz C1-Premium & 4x2.7 GHz C1-Pro)
GPU
Galaxy S25 Ultra
Adreno 830 (1200 MHz)
Galaxy Tab S12 Ultra
Mali-G1 Ultra MC12
Card slot
Galaxy S25 Ultra
No
Galaxy Tab S12 Ultra
microSDXC (dedicated slot)
Internal
Galaxy S25 Ultra
256GB 12GB RAM, 512GB 12GB RAM, 1TB 12GB RAM, 1TB 16GB RAM
Galaxy Tab S12 Ultra
256GB 12GB RAM, 512GB 12GB RAM, 1TB 16GB RAM
Other
Galaxy S25 Ultra
UFS 4.0
Galaxy Tab S12 Ultra
UFS
Quad
Galaxy S25 Ultra
200 MP, f/1.7, 24mm (wide), 1/1.3", 0.6µm, multi-directional PDAF, OIS 10 MP, f/2.4, 67mm (telephoto), 1/3.52", 1.12µm, PDAF, OIS, 3x optical zoom 50 MP, f/3.4, 111mm (periscope telephoto), 1/2.52", 0.7µm, PDAF, OIS, 5x optical zoom 50 MP, f/1.9, 120˚ (ultrawide), 1/2.5", 0.7µm, dual pixel PDAF, Super Steady video
Galaxy Tab S12 Ultra
-
Features
Galaxy S25 Ultra
Laser AF, Best Face, LED flash, auto-HDR, panorama
Galaxy Tab S12 Ultra
LED flash, HDR, panorama
Video
Galaxy S25 Ultra
8K@24/30fps, 4K@30/60/120fps, 1080p@30/60/120/240fps, 10-bit HDR, HDR10+, stereo sound rec., gyro-EIS
Galaxy Tab S12 Ultra
4K@30fps, 1080p@30fps
Dual
Galaxy S25 Ultra
-
Galaxy Tab S12 Ultra
13 MP, f/2.0, 26mm (wide), 1/3.4", 1.0µm, AF 8 MP, f/2.2, (ultrawide)
Single
Galaxy S25 Ultra
12 MP, f/2.2, 26mm (wide), 1/3.2", 1.12µm, dual pixel PDAF
Galaxy Tab S12 Ultra
12 MP, f/2.4, 120˚ (ultrawide)
Features
Galaxy S25 Ultra
HDR, HDR10+
Galaxy Tab S12 Ultra
HDR
Video
Galaxy S25 Ultra
4K@30/60fps, 1080p@30fps
Galaxy Tab S12 Ultra
4K@30fps, 1080p@30fps
Loudspeaker
Galaxy S25 Ultra
Yes, with stereo speakers
Galaxy Tab S12 Ultra
Yes, with stereo speakers (4 speakers)
3.5mm jack
Galaxy S25 Ultra
No
Galaxy Tab S12 Ultra
No
Other
Galaxy S25 Ultra
High-bitrate audio support
Galaxy Tab S12 Ultra
-
WLAN
Galaxy S25 Ultra
Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
Galaxy Tab S12 Ultra
Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
Bluetooth
Galaxy S25 Ultra
5.4, A2DP, LE
Galaxy Tab S12 Ultra
6.0, A2DP, LE
Positioning
Galaxy S25 Ultra
GPS, GLONASS, BDS, GALILEO, QZSS
Galaxy Tab S12 Ultra
GPS, GLONASS, BDS, GALILEO
NFC
Galaxy S25 Ultra
Yes
Galaxy Tab S12 Ultra
No
Radio
Galaxy S25 Ultra
No
Galaxy Tab S12 Ultra
No
USB
Galaxy S25 Ultra
USB Type-C 3.2, DisplayPort 1.2, OTG
Galaxy Tab S12 Ultra
USB Type-C 3.2, magnetic connector
Sensors
Galaxy S25 Ultra
Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
Galaxy Tab S12 Ultra
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Other
Galaxy S25 Ultra
Samsung DeX, Samsung Wireless DeX (desktop experience support) Ultra Wideband (UWB) support
Galaxy Tab S12 Ultra
Wireless Samsung DeX (desktop experience support)
Type
Galaxy S25 Ultra
Li-Ion 5000 mAh
Galaxy Tab S12 Ultra
Li-Po 11600 mAh
Charging
Galaxy S25 Ultra
45W wired, PD3.0, 65% in 30 min 15W wireless (Qi2 Ready) 4.5W reverse wireless
Galaxy Tab S12 Ultra
45W wired, 100% in 95 min
Colors
Galaxy S25 Ultra
Titanium Silver Blue, Titanium Black, Titanium White Silver, Titanium Gray, Titanium Jade Green, Titanium Jet Black, Titanium Pink Gold
Galaxy Tab S12 Ultra
Gray, Silver
Models
Galaxy S25 Ultra
SM-S938B, SM-S938B/DS, SM-S938U, SM-S938U1, SM-S938W, SM-S938N, SM-S9380, SM-S938E, SM-S938E/DS
Galaxy Tab S12 Ultra
SM-X940, SM-X946
SAR
Galaxy S25 Ultra
1.26 W/kg (head) 0.64 W/kg (body)
Galaxy Tab S12 Ultra
-
SAR EU
Galaxy S25 Ultra
1.25 W/kg (head) 1.42 W/kg (body)
Galaxy Tab S12 Ultra
0.47 W/kg (body)
Price
Galaxy S25 Ultra
$ 1,299.99 / C$ 1,229.75 / £ 699.00 / € 846.41 / ₹ 112,990
Galaxy Tab S12 Ultra
About 1570 EUR