Screen size
BACKFLIP3.1"
Signature 27Winner: 6.8"+54%
Quick verdict
Signature 27 leads the measured specs 17-4.
Measured wins
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4
spec wins
Ties
1
equal specs
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17
spec wins
Overall winner
Screen size
Technology
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GSM / HSPA
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GSM / HSPA / LTE / 5G
2G bands
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GSM 850 / 900 / 1800 / 1900
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GSM 850 / 900 / 1800 / 1900
3G bands
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HSDPA 850 / 900 / 1900 / 2100 , HSDPA 850 / 900 / 1700 / 2100
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HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
Speed
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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
equal specsSignature 27
HSPA, LTE, 5G
4G bands
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-
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LTE
5G bands
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-
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SA/NSA/Sub6
Announced
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2010, January. Released 2010, March
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2026, September 22
Status
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Discontinued
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Coming soon. Exp. release 2026, Oct-Nov
Dimensions
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108 x 53 x 15.3 mm (4.25 x 2.09 x 0.60 in)
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Weight
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133 g (4.69 oz)
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Keyboard
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QWERTY
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SIM
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Mini-SIM
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Nano-SIM + Nano-SIM
Other
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BACKTRACK touch panel
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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
Build
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-
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Glass front (Gorilla Glass Victus 2), aluminum frame
Type
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TFT, 256K colors (65K effective)
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LTPO AMOLED, 1B colors, 165Hz, Dolby Vision, HDR10+
Size
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3.1 inches, 28.6 cm2 (~50.0% screen-to-body ratio)
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6.8 inches, 112.4 cm2
Resolution
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320 x 480 pixels, 3:2 ratio (~186 ppi density)
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1264 x 2780 pixels (~449 ppi density)
Protection
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Corning Gorilla Glass
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Corning Gorilla Glass Victus 2
Other
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MOTOBLUR UI with Live Widgets
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OS
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Android 1.5 (Cupcake), upgradable to 2.1 (Eclair) in USA
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Android 17, up to 7 major OS updates
Chipset
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Qualcomm MSM7201A
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Qualcomm SM8975 Snapdragon 8 Elite Extreme Gen 6 (2 nm)
CPU
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528 MHz ARM 11
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Octa-core (2x5.01 GHz Prime + 3x4.03 GHz Performance + 3x3.74 GHz Performance)
GPU
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Adreno 130
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Adreno 850
Card slot
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microSDHC (dedicated slot), 2 GB included
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No
Internal
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512MB 256MB RAM
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256GB 12GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
Other
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-
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UFS 4.1
Single
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5 MP, AF
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Features
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LED flash
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Dual-LED flash, HDR, panorama
Video
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CIF@30fps
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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
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-
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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
Other
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No
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Single
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-
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50 MP, f/2.0, 21mm (wide), 1/2.93", 0.6µm, dual-pixel PDAF
Features
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-
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HDR
Video
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-
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4K@30/60fps, 1080p@30/60/120/240fps, HDR
Loudspeaker
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Yes, with stereo speakers
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Yes, with stereo speakers (with Dolby Atmos)
3.5mm jack
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Yes
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No
Other
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-
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24-bit/192kHz Hi-Res & Hi-Res Wireless audio Sound by Bang & Olufsen
WLAN
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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
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2.1, A2DP
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6.0, A2DP, LE
Positioning
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GPS, A-GPS
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GPS, GLONASS, GALILEO, BDS, NavIC
Radio
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No
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No
USB
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microUSB 2.0
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USB Type-C 3.1 Gen2, OTG, DisplayPort 1.4
NFC
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-
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Yes
Sensors
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Accelerometer, proximity, compass
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Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass
Browser
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HTML
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Other
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MP3/eAAC+/WAV/WMA9 player MP4/H.264/WMV9 player Organizer Document viewer Voice memo/dial Predictive text input
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Smart Connect (Ready For) support Ultra Wideband (UWB) support
Type
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Removable Li-Ion 1400 mAh battery
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Si/C Li-Ion 7000 mAh
Stand-by
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Up to 315 h
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Talk time
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Up to 6 h
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Charging
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-
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90W wired 50W wireless 10W reverse wireless 5W reverse wired
Colors
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Platinum Silver
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Pantone: Coal Smoke, Capulet Olive
SAR
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0.58 W/kg (head) 0.60 W/kg (body)
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Price
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About 150 EUR
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