Screen size
A837 Rugby2.0"
Galaxy Tab S12 UltraWinner: 14.6"+86%
Quick verdict
Galaxy Tab S12 Ultra leads the measured specs 20-1.
Measured wins
A837 Rugby
1
spec wins
Ties
2
equal specs
Galaxy Tab S12 Ultra
20
spec wins
Overall winner
Screen size
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
equal specsSD card
equal specsStereo speakers
Technology
A837 Rugby
GSM / HSPA
Galaxy Tab S12 Ultra
GSM / HSPA / LTE / 5G
2G bands
A837 Rugby
GSM 850 / 900 / 1800 / 1900
Galaxy Tab S12 Ultra
GSM 850 / 900 / 1800 / 1900
3G bands
A837 Rugby
HSDPA 850 / 1900
Galaxy Tab S12 Ultra
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
Speed
A837 Rugby
HSPA
Galaxy Tab S12 Ultra
HSPA, LTE, 5G - cellular model only
4G bands
A837 Rugby
-
Galaxy Tab S12 Ultra
LTE
5G bands
A837 Rugby
-
Galaxy Tab S12 Ultra
SA/NSA/Sub6
Announced
A837 Rugby
2008, September. Released 2008, September
Galaxy Tab S12 Ultra
2026, September 30
Status
A837 Rugby
Discontinued
Galaxy Tab S12 Ultra
Released Oct 7, 2026
Dimensions
A837 Rugby
100 x 52 x 23 mm (3.94 x 2.05 x 0.91 in)
Galaxy Tab S12 Ultra
326.3 x 208.5 x 5.1 mm (12.85 x 8.21 x 0.20 in)
Weight
A837 Rugby
132 g (4.66 oz)
Galaxy Tab S12 Ultra
692 g or 695 g (1.53 lb)
SIM
A837 Rugby
Mini-SIM
Galaxy Tab S12 Ultra
Nano-SIM + eSIM (cellular model only)
Other
A837 Rugby
MIL-STD-810F compliant salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant
Galaxy Tab S12 Ultra
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min) Stylus support Enhanced Armor Aluminum
Build
A837 Rugby
-
Galaxy Tab S12 Ultra
Glass front, aluminum frame, aluminum back
Type
A837 Rugby
TFT, 256K colors
Galaxy Tab S12 Ultra
Dynamic AMOLED 2X, 120Hz, HDR10+, 1000 nits (HBM), 1600 nits (peak)
Size
A837 Rugby
2.0 inches, 12.6 cm2 (~24.2% screen-to-body ratio)
Galaxy Tab S12 Ultra
14.6 inches, 617.8 cm2 (~90.8% screen-to-body ratio)
Resolution
A837 Rugby
176 x 220 pixels (~141 ppi density)
Galaxy Tab S12 Ultra
1848 x 2960 pixels, 16:10 ratio (~239 ppi density)
Other
A837 Rugby
External 1" monochrome display
Galaxy Tab S12 Ultra
-
Card slot
A837 Rugby
microSD (dedicated slot)
Galaxy Tab S12 Ultra
microSDXC (dedicated slot)
Phonebook
A837 Rugby
1000 entries, Photocall
Galaxy Tab S12 Ultra
-
Call records
A837 Rugby
30 received, dialed and missed calls
Galaxy Tab S12 Ultra
-
Internal
A837 Rugby
128MB
Galaxy Tab S12 Ultra
256GB 12GB RAM, 512GB 12GB RAM, 1TB 16GB RAM
Other
A837 Rugby
-
Galaxy Tab S12 Ultra
UFS
Single
A837 Rugby
1.3 MP
Galaxy Tab S12 Ultra
-
Video
A837 Rugby
176x144@15fps
Galaxy Tab S12 Ultra
4K@30fps, 1080p@30fps
Dual
A837 Rugby
-
Galaxy Tab S12 Ultra
13 MP, f/2.0, 26mm (wide), 1/3.4", 1.0µm, AF 8 MP, f/2.2, (ultrawide)
Features
A837 Rugby
-
Galaxy Tab S12 Ultra
LED flash, HDR, panorama
Other
A837 Rugby
No
Galaxy Tab S12 Ultra
-
Single
A837 Rugby
-
Galaxy Tab S12 Ultra
12 MP, f/2.4, 120˚ (ultrawide)
Features
A837 Rugby
-
Galaxy Tab S12 Ultra
HDR
Video
A837 Rugby
-
Galaxy Tab S12 Ultra
4K@30fps, 1080p@30fps
Loudspeaker
A837 Rugby
Yes
Galaxy Tab S12 Ultra
Yes, with stereo speakers (4 speakers)
3.5mm jack
A837 Rugby
No
Galaxy Tab S12 Ultra
No
WLAN
A837 Rugby
No
Galaxy Tab S12 Ultra
Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
Bluetooth
A837 Rugby
2.0, A2DP
Galaxy Tab S12 Ultra
6.0, A2DP, LE
Positioning
A837 Rugby
A-GPS only; AT&T Navigator
Galaxy Tab S12 Ultra
GPS, GLONASS, BDS, GALILEO
Radio
A837 Rugby
No
Galaxy Tab S12 Ultra
No
USB
A837 Rugby
2.0
Galaxy Tab S12 Ultra
USB Type-C 3.2, magnetic connector
NFC
A837 Rugby
-
Galaxy Tab S12 Ultra
No
Sensors
A837 Rugby
Galaxy Tab S12 Ultra
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Messaging
A837 Rugby
SMS, AMS, MMS, Email, Push Email, IM
Galaxy Tab S12 Ultra
-
Browser
A837 Rugby
WAP/xHTML
Galaxy Tab S12 Ultra
-
Games
A837 Rugby
Yes
Galaxy Tab S12 Ultra
-
Java
A837 Rugby
Yes, MIDP 2.1
Galaxy Tab S12 Ultra
-
Other
A837 Rugby
MP3/WAV/AAC+ player MP4/H.263 player Organizer Push to Talk Voice memo Predictive text input
Galaxy Tab S12 Ultra
Wireless Samsung DeX (desktop experience support)
Type
A837 Rugby
Removable Li-Ion 1000 mAh battery
Galaxy Tab S12 Ultra
Li-Po 11600 mAh
Stand-by
A837 Rugby
Up to 250 h
Galaxy Tab S12 Ultra
-
Talk time
A837 Rugby
Up to 5 h
Galaxy Tab S12 Ultra
-
Charging
A837 Rugby
-
Galaxy Tab S12 Ultra
45W wired, 100% in 95 min
Colors
A837 Rugby
Red on Black, Yellow on Black
Galaxy Tab S12 Ultra
Gray, Silver
SAR
A837 Rugby
0.24 W/kg (head) 0.40 W/kg (body)
Galaxy Tab S12 Ultra
-
Price
A837 Rugby
About 130 EUR
Galaxy Tab S12 Ultra
About 1570 EUR
Models
A837 Rugby
-
Galaxy Tab S12 Ultra
SM-X940, SM-X946
SAR EU
A837 Rugby
-
Galaxy Tab S12 Ultra
0.47 W/kg (body)
OS
A837 Rugby
-
Galaxy Tab S12 Ultra
Android 17, up to 7 major OS updates, One UI 9
Chipset
A837 Rugby
-
Galaxy Tab S12 Ultra
MediaTek Dimensity 9500 (3 nm)
CPU
A837 Rugby
-
Galaxy Tab S12 Ultra
Octa-core (1x4.21 GHz C1-Ultra & 3x3.5 GHz C1-Premium & 4x2.7 GHz C1-Pro)
GPU
A837 Rugby
-
Galaxy Tab S12 Ultra
Mali-G1 Ultra MC12