Screen size
C390—
Signature 27Winner: 6.8"
Quick verdict
Signature 27 leads the measured specs 18-2.
Measured wins
C390
2
spec wins
Ties
2
equal specs
Signature 27
18
spec wins
Overall winner
Screen size
Technology
C390
GSM
Signature 27
GSM / HSPA / LTE / 5G
2G bands
C390
GSM 900 / 1800 / 1900
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GSM 850 / 900 / 1800 / 1900
GPRS
C390
Class 10
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-
EDGE
C390
No
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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
-
3G bands
C390
-
Signature 27
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
C390
-
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LTE
5G bands
C390
-
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SA/NSA/Sub6
Speed
C390
-
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HSPA, LTE, 5G
Announced
C390
2004, Q4
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2026, September 22
Status
C390
Discontinued
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Coming soon. Exp. release 2026, Oct-Nov
Dimensions
C390
107 x 44 x 20.9 mm, 80 cc (4.21 x 1.73 x 0.82 in)
Signature 27
-
Weight
C390
91 g (3.21 oz)
Signature 27
-
SIM
C390
Mini-SIM
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Nano-SIM + Nano-SIM
Build
C390
-
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Glass front (Gorilla Glass Victus 2), aluminum frame
Other
C390
-
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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
C390
CSTN, 65K colors
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LTPO AMOLED, 1B colors, 165Hz, Dolby Vision, HDR10+
Size
C390
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6.8 inches, 112.4 cm2
Resolution
C390
128 x 128 pixels, 5 lines, 1:1 ratio
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1264 x 2780 pixels (~449 ppi density)
Other
C390
Screensavers and wallpapers Downloadable logos
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-
Protection
C390
-
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Corning Gorilla Glass Victus 2
Card slot
C390
No
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No
Phonebook
C390
500 entries
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-
Call records
C390
10 dialed, 10 received, 10 missed calls
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-
Internal
C390
1.8MB
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256GB 12GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
Other
C390
-
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UFS 4.1
Other
C390
No
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-
Loudspeaker
C390
Yes
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Yes, with stereo speakers (with Dolby Atmos)
Alert types
C390
Vibration; Downloadable polyphonic, MP3 ringtones, composer
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-
3.5mm jack
C390
No
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No
Other
C390
-
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24-bit/192kHz Hi-Res & Hi-Res Wireless audio Sound by Bang & Olufsen
WLAN
C390
No
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Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
Bluetooth
C390
1.1
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6.0, A2DP, LE
Positioning
C390
No
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GPS, GLONASS, GALILEO, BDS, NavIC
Radio
C390
No
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No
USB
C390
Proprietary
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USB Type-C 3.1 Gen2, OTG, DisplayPort 1.4
NFC
C390
-
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Yes
Sensors
C390
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Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass
Messaging
C390
SMS, EMS, MMS, EMail
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-
Browser
C390
WAP 2.0/xHTML
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-
Games
C390
Football, Keepy Uppy + downloadable
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-
Java
C390
Yes, MIDP 2.0
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-
Other
C390
Predictive text input Organizer Voice dial
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Smart Connect (Ready For) support Ultra Wideband (UWB) support
Type
C390
Removable Li-Ion 820 mAh battery
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Si/C Li-Ion 7000 mAh
Stand-by
C390
Up to 275 h
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-
Talk time
C390
Up to 5 h 50 min
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-
Charging
C390
-
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90W wired 50W wireless 10W reverse wireless 5W reverse wired
Colors
C390
Dark Blue Green Soft Feel, Dark Roast Black
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Pantone: Coal Smoke, Capulet Olive
OS
C390
-
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Android 17, up to 7 major OS updates
Chipset
C390
-
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Qualcomm SM8975 Snapdragon 8 Elite Extreme Gen 6 (2 nm)
CPU
C390
-
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Octa-core (2x5.01 GHz Prime + 3x4.03 GHz Performance + 3x3.74 GHz Performance)
GPU
C390
-
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Adreno 850
Triple
C390
-
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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
Features
C390
-
Signature 27
Dual-LED flash, HDR, panorama
Video
C390
-
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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
Single
C390
-
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50 MP, f/2.0, 21mm (wide), 1/2.93", 0.6µm, dual-pixel PDAF
Features
C390
-
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HDR
Video
C390
-
Signature 27
4K@30/60fps, 1080p@30/60/120/240fps, HDR