Screen size
Galaxy Ace 44.0"
Galaxy Tab S12 UltraWinner: 14.6"+73%
Quick verdict
Galaxy Tab S12 Ultra leads the measured specs 19-2.
Measured wins
Galaxy Ace 4
2
spec wins
Ties
2
equal specs
Galaxy Tab S12 Ultra
19
spec wins
Overall winner
Screen size
Technology
Galaxy Ace 4
GSM / HSPA
Galaxy Tab S12 Ultra
GSM / HSPA / LTE / 5G
2G bands
Galaxy Ace 4
GSM 850 / 900 / 1800 / 1900
Galaxy Tab S12 Ultra
GSM 850 / 900 / 1800 / 1900
3G bands
Galaxy Ace 4
HSDPA 900 / 2100
Galaxy Tab S12 Ultra
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
Speed
Galaxy Ace 4
HSPA 21.1/5.76 Mbps
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
equal specs3.5mm jack
SD card
equal specsStereo speakers
Galaxy Tab S12 Ultra
HSPA, LTE, 5G - cellular model only
4G bands
Galaxy Ace 4
-
Galaxy Tab S12 Ultra
LTE
5G bands
Galaxy Ace 4
-
Galaxy Tab S12 Ultra
SA/NSA/Sub6
Announced
Galaxy Ace 4
2014, June. Released 2014, August
Galaxy Tab S12 Ultra
2026, September 30
Status
Galaxy Ace 4
Discontinued
Galaxy Tab S12 Ultra
Released Oct 7, 2026
Dimensions
Galaxy Ace 4
121.4 x 62.9 x 10.8 mm (4.78 x 2.48 x 0.43 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 Ace 4
123.8 g (4.37 oz)
Galaxy Tab S12 Ultra
692 g or 695 g (1.53 lb)
Build
Galaxy Ace 4
Glass front, plastic back, plastic frame
Galaxy Tab S12 Ultra
Glass front, aluminum frame, aluminum back
SIM
Galaxy Ace 4
Micro-SIM
Galaxy Tab S12 Ultra
Nano-SIM + eSIM (cellular model only)
Other
Galaxy Ace 4
-
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 Ace 4
TFT
Galaxy Tab S12 Ultra
Dynamic AMOLED 2X, 120Hz, HDR10+, 1000 nits (HBM), 1600 nits (peak)
Size
Galaxy Ace 4
4.0 inches, 45.5 cm2 (~59.6% screen-to-body ratio)
Galaxy Tab S12 Ultra
14.6 inches, 617.8 cm2 (~90.8% screen-to-body ratio)
Resolution
Galaxy Ace 4
480 x 800 pixels, 5:3 ratio (~233 ppi density)
Galaxy Tab S12 Ultra
1848 x 2960 pixels, 16:10 ratio (~239 ppi density)
OS
Galaxy Ace 4
Android 4.4.2 (KitKat)
Galaxy Tab S12 Ultra
Android 17, up to 7 major OS updates, One UI 9
CPU
Galaxy Ace 4
Dual-core 1.0 GHz
Galaxy Tab S12 Ultra
Octa-core (1x4.21 GHz C1-Ultra & 3x3.5 GHz C1-Premium & 4x2.7 GHz C1-Pro)
Chipset
Galaxy Ace 4
-
Galaxy Tab S12 Ultra
MediaTek Dimensity 9500 (3 nm)
GPU
Galaxy Ace 4
-
Galaxy Tab S12 Ultra
Mali-G1 Ultra MC12
Card slot
Galaxy Ace 4
microSDXC (dedicated slot)
Galaxy Tab S12 Ultra
microSDXC (dedicated slot)
Internal
Galaxy Ace 4
4GB 512MB RAM
Galaxy Tab S12 Ultra
256GB 12GB RAM, 512GB 12GB RAM, 1TB 16GB RAM
Other
Galaxy Ace 4
-
Galaxy Tab S12 Ultra
UFS
Single
Galaxy Ace 4
5 MP, AF
Galaxy Tab S12 Ultra
-
Features
Galaxy Ace 4
LED flash, panorama
Galaxy Tab S12 Ultra
LED flash, HDR, panorama
Video
Galaxy Ace 4
720p@30fps
Galaxy Tab S12 Ultra
4K@30fps, 1080p@30fps
Dual
Galaxy Ace 4
-
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 Ace 4
VGA
Galaxy Tab S12 Ultra
12 MP, f/2.4, 120˚ (ultrawide)
Video
Galaxy Ace 4
Galaxy Tab S12 Ultra
4K@30fps, 1080p@30fps
Features
Galaxy Ace 4
-
Galaxy Tab S12 Ultra
HDR
Loudspeaker
Galaxy Ace 4
Yes
Galaxy Tab S12 Ultra
Yes, with stereo speakers (4 speakers)
3.5mm jack
Galaxy Ace 4
Yes
Galaxy Tab S12 Ultra
No
WLAN
Galaxy Ace 4
Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
Galaxy Tab S12 Ultra
Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
Bluetooth
Galaxy Ace 4
4.0, A2DP
Galaxy Tab S12 Ultra
6.0, A2DP, LE
Positioning
Galaxy Ace 4
GPS, GLONASS
Galaxy Tab S12 Ultra
GPS, GLONASS, BDS, GALILEO
NFC
Galaxy Ace 4
No
Galaxy Tab S12 Ultra
No
Radio
Galaxy Ace 4
FM radio
Galaxy Tab S12 Ultra
No
USB
Galaxy Ace 4
microUSB 2.0
Galaxy Tab S12 Ultra
USB Type-C 3.2, magnetic connector
Sensors
Galaxy Ace 4
Accelerometer
Galaxy Tab S12 Ultra
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Other
Galaxy Ace 4
-
Galaxy Tab S12 Ultra
Wireless Samsung DeX (desktop experience support)
Type
Galaxy Ace 4
Li-Ion 1500 mAh, removable
Galaxy Tab S12 Ultra
Li-Po 11600 mAh
Talk time
Galaxy Ace 4
Up to 11 h (3G)
Galaxy Tab S12 Ultra
-
Music play
Galaxy Ace 4
Up to 53 h
Galaxy Tab S12 Ultra
-
Charging
Galaxy Ace 4
-
Galaxy Tab S12 Ultra
45W wired, 100% in 95 min
Colors
Galaxy Ace 4
Iris Charcoal, Classic White
Galaxy Tab S12 Ultra
Gray, Silver
Price
Galaxy Ace 4
About 220 EUR
Galaxy Tab S12 Ultra
About 1570 EUR
Models
Galaxy Ace 4
-
Galaxy Tab S12 Ultra
SM-X940, SM-X946
SAR EU
Galaxy Ace 4
-
Galaxy Tab S12 Ultra
0.47 W/kg (body)