Screen size
A31002.8"
Signature 27Winner: 6.8"+59%
Quick verdict
Signature 27 leads the measured specs 18-4.
Measured wins
A3100
4
spec wins
Ties
0
equal specs
Signature 27
18
spec wins
Overall winner
Screen size
Technology
A3100
GSM / HSPA
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GSM / HSPA / LTE / 5G
2G bands
A3100
GSM 850 / 900 / 1800 / 1900
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GSM 850 / 900 / 1800 / 1900
3G bands
A3100
HSDPA 850 / 1900 / 2100
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HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
Speed
A3100
HSPA 7.2/0.384 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
Stereo speakers
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HSPA, LTE, 5G
4G bands
A3100
-
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LTE
5G bands
A3100
-
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SA/NSA/Sub6
Announced
A3100
2009, January. Released 2009, March
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2026, September 22
Status
A3100
Discontinued
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Coming soon. Exp. release 2026, Oct-Nov
Dimensions
A3100
110 x 59.7 x 13.7 mm (4.33 x 2.35 x 0.54 in)
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-
Weight
A3100
119 g (4.20 oz)
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-
SIM
A3100
Mini-SIM
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Nano-SIM + Nano-SIM
Build
A3100
-
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Glass front (Gorilla Glass Victus 2), aluminum frame
Other
A3100
-
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IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.2m for 30 min) MIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions
Type
A3100
TFT resistive touchscreen, 65K colors
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LTPO AMOLED, 1B colors, 165Hz, Dolby Vision, HDR10+
Size
A3100
2.8 inches, 24.3 cm2 (~37.0% screen-to-body ratio)
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6.8 inches, 112.4 cm2
Resolution
A3100
240 x 320 pixels, 4:3 ratio (~143 ppi density)
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1264 x 2780 pixels (~449 ppi density)
Other
A3100
Handwriting recognition
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-
Protection
A3100
-
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Corning Gorilla Glass Victus 2
OS
A3100
Microsoft Windows Mobile 6.1 Professional
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Android 17, up to 7 major OS updates
Chipset
A3100
Qualcomm MSM7201A
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Qualcomm SM8975 Snapdragon 8 Elite Extreme Gen 6 (2 nm)
CPU
A3100
528 MHz ARM 11
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Octa-core (2x5.01 GHz Prime + 3x4.03 GHz Performance + 3x3.74 GHz Performance)
GPU
A3100
Adreno 130
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Adreno 850
Card slot
A3100
microSDHC (dedicated slot)
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No
Internal
A3100
256MB 128MB RAM
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256GB 12GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
Other
A3100
-
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UFS 4.1
Single
A3100
3.15 MP, AF
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-
Features
A3100
LED flash
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Dual-LED flash, HDR, panorama
Video
A3100
Yes
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8K@30fps (Dolby Vision), 4K@30/60fps (Dolby Vision), 4K@120fps, 1080p@30/60/120/240fps, 10-bit HDR10+, gyro-EIS
Triple
A3100
-
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50 MP, (wide), 1/1.28", 1.22µm, PDAF, OIS 200 MP, (periscope telephoto), PDAF, OIS, 5x optical zoom 50 MP, f/2.0, 12mm, 122˚ (ultrawide), 1/2.76", 0.64µm, PDAF
Single
A3100
VGA videocall camera
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50 MP, f/2.0, 21mm (wide), 1/2.93", 0.6µm, dual-pixel PDAF
Video
A3100
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4K@30/60fps, 1080p@30/60/120/240fps, HDR
Features
A3100
-
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HDR
Loudspeaker
A3100
Yes
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Yes, with stereo speakers (with Dolby Atmos)
3.5mm jack
A3100
Yes
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No
Other
A3100
-
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24-bit/192kHz Hi-Res & Hi-Res Wireless audio Sound by Bang & Olufsen
WLAN
A3100
Wi-Fi 802.11 b/g
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Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
Bluetooth
A3100
2.0, A2DP
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6.0, A2DP, LE
Positioning
A3100
GPS, A-GPS
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GPS, GLONASS, GALILEO, BDS, NavIC
Radio
A3100
No
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No
USB
A3100
miniUSB
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USB Type-C 3.1 Gen2, OTG, DisplayPort 1.4
NFC
A3100
-
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Yes
Sensors
A3100
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Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass
Browser
A3100
WAP 2.0/xHTML, HTML
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-
Other
A3100
Pocket Office Voice memo MP3/WMA/MP4/WMV player
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Smart Connect (Ready For) support Ultra Wideband (UWB) support
Type
A3100
Removable Li-Ion 1170 mAh battery
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Si/C Li-Ion 7000 mAh
Stand-by
A3100
Up to 298 h
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-
Talk time
A3100
Up to 6 h 48 min
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-
Charging
A3100
-
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90W wired 50W wireless 10W reverse wireless 5W reverse wired
Colors
A3100
Black
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Pantone: Coal Smoke, Capulet Olive
SAR
A3100
1.31 W/kg (head) 1.33 W/kg (body)
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-
SAR EU
A3100
0.93 W/kg (head)
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-
Price
A3100
About 150 EUR
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-