Screen size
Galaxy Rush M8303.5"
Galaxy Tab S12 UltraWinner: 14.6"+76%
Quick verdict
Galaxy Tab S12 Ultra leads the measured specs 19-3.
Measured wins
Galaxy Rush M830
3
spec wins
Ties
1
equal specs
Galaxy Tab S12 Ultra
19
spec wins
Overall winner
Screen size
Technology
Galaxy Rush M830
CDMA / EVDO
Galaxy Tab S12 Ultra
GSM / HSPA / LTE / 5G
2G bands
Galaxy Rush M830
CDMA 800 / 1900
Galaxy Tab S12 Ultra
GSM 850 / 900 / 1800 / 1900
3G bands
Galaxy Rush M830
CDMA2000 1xEV-DO
Galaxy Tab S12 Ultra
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
Speed
Galaxy Rush M830
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 Rush M830
-
Galaxy Tab S12 Ultra
LTE
5G bands
Galaxy Rush M830
-
Galaxy Tab S12 Ultra
SA/NSA/Sub6
Announced
Galaxy Rush M830
2012, August. Released 2012, September
Galaxy Tab S12 Ultra
2026, September 30
Status
Galaxy Rush M830
Discontinued
Galaxy Tab S12 Ultra
Released Oct 7, 2026
Dimensions
Galaxy Rush M830
122.9 x 59.9 x 11.9 mm (4.84 x 2.36 x 0.47 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 Rush M830
119.1 g (4.20 oz)
Galaxy Tab S12 Ultra
692 g or 695 g (1.53 lb)
SIM
Galaxy Rush M830
Mini-SIM
Galaxy Tab S12 Ultra
Nano-SIM + eSIM (cellular model only)
Build
Galaxy Rush M830
-
Galaxy Tab S12 Ultra
Glass front, aluminum frame, aluminum back
Other
Galaxy Rush M830
-
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 Rush M830
TFT
Galaxy Tab S12 Ultra
Dynamic AMOLED 2X, 120Hz, HDR10+, 1000 nits (HBM), 1600 nits (peak)
Size
Galaxy Rush M830
3.5 inches, 36.5 cm2 (~49.5% screen-to-body ratio)
Galaxy Tab S12 Ultra
14.6 inches, 617.8 cm2 (~90.8% screen-to-body ratio)
Resolution
Galaxy Rush M830
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 Rush M830
Touch sensitive controls
Galaxy Tab S12 Ultra
-
OS
Galaxy Rush M830
Android 4.0.4 (Ice Cream Sandwich)
Galaxy Tab S12 Ultra
Android 17, up to 7 major OS updates, One UI 9
Chipset
Galaxy Rush M830
Qualcomm MSM8655 Snapdragon S2
Galaxy Tab S12 Ultra
MediaTek Dimensity 9500 (3 nm)
CPU
Galaxy Rush M830
1.0 GHz Scorpion
Galaxy Tab S12 Ultra
Octa-core (1x4.21 GHz C1-Ultra & 3x3.5 GHz C1-Premium & 4x2.7 GHz C1-Pro)
GPU
Galaxy Rush M830
Adreno 205
Galaxy Tab S12 Ultra
Mali-G1 Ultra MC12
Card slot
Galaxy Rush M830
microSDHC (dedicated slot)
Galaxy Tab S12 Ultra
microSDXC (dedicated slot)
Internal
Galaxy Rush M830
2GB 768MB RAM
Galaxy Tab S12 Ultra
256GB 12GB RAM, 512GB 12GB RAM, 1TB 16GB RAM
Other
Galaxy Rush M830
-
Galaxy Tab S12 Ultra
UFS
Single
Galaxy Rush M830
3.15 MP, AF
Galaxy Tab S12 Ultra
-
Video
Galaxy Rush M830
Yes
Galaxy Tab S12 Ultra
4K@30fps, 1080p@30fps
Dual
Galaxy Rush M830
-
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 Rush M830
-
Galaxy Tab S12 Ultra
LED flash, HDR, panorama
Single
Galaxy Rush M830
1.3 MP
Galaxy Tab S12 Ultra
12 MP, f/2.4, 120˚ (ultrawide)
Video
Galaxy Rush M830
Galaxy Tab S12 Ultra
4K@30fps, 1080p@30fps
Features
Galaxy Rush M830
-
Galaxy Tab S12 Ultra
HDR
Loudspeaker
Galaxy Rush M830
Yes
Galaxy Tab S12 Ultra
Yes, with stereo speakers (4 speakers)
3.5mm jack
Galaxy Rush M830
Yes
Galaxy Tab S12 Ultra
No
WLAN
Galaxy Rush M830
Wi-Fi 802.11 b/g/n
Galaxy Tab S12 Ultra
Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
Bluetooth
Galaxy Rush M830
4.0, A2DP
Galaxy Tab S12 Ultra
6.0, A2DP, LE
Positioning
Galaxy Rush M830
GPS, A-GPS
Galaxy Tab S12 Ultra
GPS, GLONASS, BDS, GALILEO
Radio
Galaxy Rush M830
No
Galaxy Tab S12 Ultra
No
USB
Galaxy Rush M830
microUSB 2.0
Galaxy Tab S12 Ultra
USB Type-C 3.2, magnetic connector
NFC
Galaxy Rush M830
-
Galaxy Tab S12 Ultra
No
Sensors
Galaxy Rush M830
Accelerometer, proximity, compass
Galaxy Tab S12 Ultra
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Other
Galaxy Rush M830
MP3/WAV/WMA/AAC+ player MP4/WMV/H.264 player Document viewer Photo viewer/editor
Galaxy Tab S12 Ultra
Wireless Samsung DeX (desktop experience support)
Type
Galaxy Rush M830
Removable Li-Ion 1750 mAh battery
Galaxy Tab S12 Ultra
Li-Po 11600 mAh
Stand-by
Galaxy Rush M830
Up to 348 h
Galaxy Tab S12 Ultra
-
Talk time
Galaxy Rush M830
Up to 9 h
Galaxy Tab S12 Ultra
-
Charging
Galaxy Rush M830
-
Galaxy Tab S12 Ultra
45W wired, 100% in 95 min
Colors
Galaxy Rush M830
Black
Galaxy Tab S12 Ultra
Gray, Silver
SAR
Galaxy Rush M830
0.98 W/kg (head) 0.72 W/kg (body)
Galaxy Tab S12 Ultra
-
Price
Galaxy Rush M830
About 100 EUR
Galaxy Tab S12 Ultra
About 1570 EUR
Models
Galaxy Rush M830
-
Galaxy Tab S12 Ultra
SM-X940, SM-X946
SAR EU
Galaxy Rush M830
-
Galaxy Tab S12 Ultra
0.47 W/kg (body)