Screen size
Galaxy Ace Duos I5893.5"
Galaxy Tab S12 UltraWinner: 14.6"+76%
Quick verdict
Galaxy Tab S12 Ultra leads the measured specs 19-3.
Measured wins
Galaxy Ace Duos I589
3
spec wins
Ties
1
equal specs
Galaxy Tab S12 Ultra
19
spec wins
Overall winner
Screen size
Technology
Galaxy Ace Duos I589
GSM / CDMA / EVDO
Galaxy Tab S12 Ultra
GSM / HSPA / LTE / 5G
2G bands
Galaxy Ace Duos I589
CDMA 800 / 1900 , GSM 900 / 1800
Galaxy Tab S12 Ultra
GSM 850 / 900 / 1800 / 1900
3G bands
Galaxy Ace Duos I589
CDMA2000 1xEV-DO
Galaxy Tab S12 Ultra
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
Speed
Galaxy Ace Duos I589
EV-DO Rev.A 3.1 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
3.5mm jack
SD card
equal specsStereo speakers
Galaxy Tab S12 Ultra
HSPA, LTE, 5G - cellular model only
4G bands
Galaxy Ace Duos I589
-
Galaxy Tab S12 Ultra
LTE
5G bands
Galaxy Ace Duos I589
-
Galaxy Tab S12 Ultra
SA/NSA/Sub6
Announced
Galaxy Ace Duos I589
2012, February. Released 2012, February
Galaxy Tab S12 Ultra
2026, September 30
Status
Galaxy Ace Duos I589
Discontinued
Galaxy Tab S12 Ultra
Released Oct 7, 2026
Dimensions
Galaxy Ace Duos I589
112.4 x 59.9 x 12.5 mm (4.43 x 2.36 x 0.49 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 Duos I589
125 g (4.41 oz)
Galaxy Tab S12 Ultra
692 g or 695 g (1.53 lb)
SIM
Galaxy Ace Duos I589
Mini-SIM
Galaxy Tab S12 Ultra
Nano-SIM + eSIM (cellular model only)
Build
Galaxy Ace Duos I589
-
Galaxy Tab S12 Ultra
Glass front, aluminum frame, aluminum back
Other
Galaxy Ace Duos I589
-
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 Duos I589
TFT
Galaxy Tab S12 Ultra
Dynamic AMOLED 2X, 120Hz, HDR10+, 1000 nits (HBM), 1600 nits (peak)
Size
Galaxy Ace Duos I589
3.5 inches, 36.5 cm2 (~54.2% screen-to-body ratio)
Galaxy Tab S12 Ultra
14.6 inches, 617.8 cm2 (~90.8% screen-to-body ratio)
Resolution
Galaxy Ace Duos I589
320 x 480 pixels, 3:2 ratio (~165 ppi density)
Galaxy Tab S12 Ultra
1848 x 2960 pixels, 16:10 ratio (~239 ppi density)
Other
Galaxy Ace Duos I589
TouchWiz UI
Galaxy Tab S12 Ultra
-
OS
Galaxy Ace Duos I589
Android 2.2 (Froyo)
Galaxy Tab S12 Ultra
Android 17, up to 7 major OS updates, One UI 9
Chipset
Galaxy Ace Duos I589
Qualcomm MSM7627
Galaxy Tab S12 Ultra
MediaTek Dimensity 9500 (3 nm)
CPU
Galaxy Ace Duos I589
800 MHz
Galaxy Tab S12 Ultra
Octa-core (1x4.21 GHz C1-Ultra & 3x3.5 GHz C1-Premium & 4x2.7 GHz C1-Pro)
GPU
Galaxy Ace Duos I589
-
Galaxy Tab S12 Ultra
Mali-G1 Ultra MC12
Card slot
Galaxy Ace Duos I589
microSDHC (dedicated slot)
Galaxy Tab S12 Ultra
microSDXC (dedicated slot)
Internal
Galaxy Ace Duos I589
-
Galaxy Tab S12 Ultra
256GB 12GB RAM, 512GB 12GB RAM, 1TB 16GB RAM
Other
Galaxy Ace Duos I589
-
Galaxy Tab S12 Ultra
UFS
Single
Galaxy Ace Duos I589
3.15 MP
Galaxy Tab S12 Ultra
-
Video
Galaxy Ace Duos I589
Yes
Galaxy Tab S12 Ultra
4K@30fps, 1080p@30fps
Dual
Galaxy Ace Duos I589
-
Galaxy Tab S12 Ultra
13 MP, f/2.0, 26mm (wide), 1/3.4", 1.0µm, AF 8 MP, f/2.2, (ultrawide)
Features
Galaxy Ace Duos I589
-
Galaxy Tab S12 Ultra
LED flash, HDR, panorama
Other
Galaxy Ace Duos I589
No
Galaxy Tab S12 Ultra
-
Single
Galaxy Ace Duos I589
-
Galaxy Tab S12 Ultra
12 MP, f/2.4, 120˚ (ultrawide)
Features
Galaxy Ace Duos I589
-
Galaxy Tab S12 Ultra
HDR
Video
Galaxy Ace Duos I589
-
Galaxy Tab S12 Ultra
4K@30fps, 1080p@30fps
Loudspeaker
Galaxy Ace Duos I589
Yes
Galaxy Tab S12 Ultra
Yes, with stereo speakers (4 speakers)
3.5mm jack
Galaxy Ace Duos I589
Yes
Galaxy Tab S12 Ultra
No
WLAN
Galaxy Ace Duos I589
Wi-Fi 802.11 b/g/n, hotspot
Galaxy Tab S12 Ultra
Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
Bluetooth
Galaxy Ace Duos I589
3.0, A2DP
Galaxy Tab S12 Ultra
6.0, A2DP, LE
Positioning
Galaxy Ace Duos I589
GPS, A-GPS
Galaxy Tab S12 Ultra
GPS, GLONASS, BDS, GALILEO
Radio
Galaxy Ace Duos I589
Stereo FM radio, RDS
Galaxy Tab S12 Ultra
No
USB
Galaxy Ace Duos I589
microUSB 2.0
Galaxy Tab S12 Ultra
USB Type-C 3.2, magnetic connector
NFC
Galaxy Ace Duos I589
-
Galaxy Tab S12 Ultra
No
Sensors
Galaxy Ace Duos I589
Accelerometer, proximity, compass
Galaxy Tab S12 Ultra
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Other
Galaxy Ace Duos I589
MP4/H.264 player MP3/WAV/eAAC+ player Document editor Photo editor
Galaxy Tab S12 Ultra
Wireless Samsung DeX (desktop experience support)
Type
Galaxy Ace Duos I589
Removable Li-Ion 1650 mAh battery
Galaxy Tab S12 Ultra
Li-Po 11600 mAh
Stand-by
Galaxy Ace Duos I589
Up to 300 h
Galaxy Tab S12 Ultra
-
Talk time
Galaxy Ace Duos I589
Up to 7 h
Galaxy Tab S12 Ultra
-
Charging
Galaxy Ace Duos I589
-
Galaxy Tab S12 Ultra
45W wired, 100% in 95 min
Colors
Galaxy Ace Duos I589
Black
Galaxy Tab S12 Ultra
Gray, Silver
SAR
Galaxy Ace Duos I589
0.43 W/kg (head) 0.73 W/kg (body)
Galaxy Tab S12 Ultra
-
SAR EU
Galaxy Ace Duos I589
0.23 W/kg (head)
Galaxy Tab S12 Ultra
0.47 W/kg (body)
Price
Galaxy Ace Duos I589
About 130 EUR
Galaxy Tab S12 Ultra
About 1570 EUR
Models
Galaxy Ace Duos I589
-
Galaxy Tab S12 Ultra
SM-X940, SM-X946