Screen size
Galaxy J1 4G4.3"
Galaxy Tab S12 UltraWinner: 14.6"+71%
Quick verdict
Galaxy Tab S12 Ultra leads the measured specs 19-3.
Measured wins
Galaxy J1 4G
3
spec wins
Ties
1
equal specs
Galaxy Tab S12 Ultra
19
spec wins
Overall winner
Screen size
Technology
Galaxy J1 4G
GSM / HSPA / LTE
Galaxy Tab S12 Ultra
GSM / HSPA / LTE / 5G
2G bands
Galaxy J1 4G
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
Galaxy Tab S12 Ultra
GSM 850 / 900 / 1800 / 1900
3G bands
Galaxy J1 4G
HSDPA 850 / 900 / 2100
Galaxy Tab S12 Ultra
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
Galaxy J1 4G
1, 3, 7, 8, 20
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
LTE
Speed
Galaxy J1 4G
HSPA 21.1/5.76 Mbps, LTE Cat4 150/50 Mbps
Galaxy Tab S12 Ultra
HSPA, LTE, 5G - cellular model only
5G bands
Galaxy J1 4G
-
Galaxy Tab S12 Ultra
SA/NSA/Sub6
Announced
Galaxy J1 4G
2015, January. Released 2015, March
Galaxy Tab S12 Ultra
2026, September 30
Status
Galaxy J1 4G
Discontinued
Galaxy Tab S12 Ultra
Released Oct 7, 2026
Dimensions
Galaxy J1 4G
129 x 68.2 x 8.9 mm (5.08 x 2.69 x 0.35 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 J1 4G
122 g (4.30 oz)
Galaxy Tab S12 Ultra
692 g or 695 g (1.53 lb)
SIM
Galaxy J1 4G
Single SIM (Micro-SIM) or Dual SIM (Micro-SIM, dual stand-by)
Galaxy Tab S12 Ultra
Nano-SIM + eSIM (cellular model only)
Build
Galaxy J1 4G
-
Galaxy Tab S12 Ultra
Glass front, aluminum frame, aluminum back
Other
Galaxy J1 4G
-
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 J1 4G
TFT
Galaxy Tab S12 Ultra
Dynamic AMOLED 2X, 120Hz, HDR10+, 1000 nits (HBM), 1600 nits (peak)
Size
Galaxy J1 4G
4.3 inches, 52.6 cm2 (~59.8% screen-to-body ratio)
Galaxy Tab S12 Ultra
14.6 inches, 617.8 cm2 (~90.8% screen-to-body ratio)
Resolution
Galaxy J1 4G
480 x 800 pixels, 5:3 ratio (~217 ppi density)
Galaxy Tab S12 Ultra
1848 x 2960 pixels, 16:10 ratio (~239 ppi density)
OS
Galaxy J1 4G
Android 4.4.4 (KitKat)
Galaxy Tab S12 Ultra
Android 17, up to 7 major OS updates, One UI 9
CPU
Galaxy J1 4G
Quad-core 1.2 GHz
Galaxy Tab S12 Ultra
Octa-core (1x4.21 GHz C1-Ultra & 3x3.5 GHz C1-Premium & 4x2.7 GHz C1-Pro)
Chipset
Galaxy J1 4G
-
Galaxy Tab S12 Ultra
MediaTek Dimensity 9500 (3 nm)
GPU
Galaxy J1 4G
-
Galaxy Tab S12 Ultra
Mali-G1 Ultra MC12
Card slot
Galaxy J1 4G
microSDXC (dedicated slot)
Galaxy Tab S12 Ultra
microSDXC (dedicated slot)
Internal
Galaxy J1 4G
4GB 768MB RAM
Galaxy Tab S12 Ultra
256GB 12GB RAM, 512GB 12GB RAM, 1TB 16GB RAM
Other
Galaxy J1 4G
-
Galaxy Tab S12 Ultra
UFS
Single
Galaxy J1 4G
5 MP, AF
Galaxy Tab S12 Ultra
-
Features
Galaxy J1 4G
LED flash
Galaxy Tab S12 Ultra
LED flash, HDR, panorama
Video
Galaxy J1 4G
720p@30fps
Galaxy Tab S12 Ultra
4K@30fps, 1080p@30fps
Dual
Galaxy J1 4G
-
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 J1 4G
2 MP
Galaxy Tab S12 Ultra
12 MP, f/2.4, 120˚ (ultrawide)
Video
Galaxy J1 4G
Galaxy Tab S12 Ultra
4K@30fps, 1080p@30fps
Features
Galaxy J1 4G
-
Galaxy Tab S12 Ultra
HDR
Loudspeaker
Galaxy J1 4G
Yes
Galaxy Tab S12 Ultra
Yes, with stereo speakers (4 speakers)
3.5mm jack
Galaxy J1 4G
Yes
Galaxy Tab S12 Ultra
No
WLAN
Galaxy J1 4G
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 J1 4G
4.0, A2DP
Galaxy Tab S12 Ultra
6.0, A2DP, LE
Positioning
Galaxy J1 4G
GPS, GLONASS
Galaxy Tab S12 Ultra
GPS, GLONASS, BDS, GALILEO
NFC
Galaxy J1 4G
Yes
Galaxy Tab S12 Ultra
No
Radio
Galaxy J1 4G
FM radio, RDS, recording
Galaxy Tab S12 Ultra
No
USB
Galaxy J1 4G
microUSB 2.0
Galaxy Tab S12 Ultra
USB Type-C 3.2, magnetic connector
Sensors
Galaxy J1 4G
Accelerometer, proximity
Galaxy Tab S12 Ultra
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Other
Galaxy J1 4G
-
Galaxy Tab S12 Ultra
Wireless Samsung DeX (desktop experience support)
Type
Galaxy J1 4G
Li-Ion 1850 mAh, removable
Galaxy Tab S12 Ultra
Li-Po 11600 mAh
Charging
Galaxy J1 4G
-
Galaxy Tab S12 Ultra
45W wired, 100% in 95 min
Colors
Galaxy J1 4G
White, Black, Blue
Galaxy Tab S12 Ultra
Gray, Silver
Models
Galaxy J1 4G
SM-J120G
Galaxy Tab S12 Ultra
SM-X940, SM-X946
Price
Galaxy J1 4G
About 120 EUR
Galaxy Tab S12 Ultra
About 1570 EUR
SAR EU
Galaxy J1 4G
-
Galaxy Tab S12 Ultra
0.47 W/kg (body)