Screen size
Razr 50 UltraWinner: 6.9"+1.4%
Signature 276.8"
Quick verdict
Signature 27 leads the measured specs 10-4.
Measured wins
Razr 50 Ultra
4
spec wins
Ties
9
equal specs
Signature 27
10
spec wins
Overall winner
Screen size
Technology
Razr 50 Ultra
GSM / CDMA / HSPA / EVDO / LTE / 5G
Signature 27
GSM / HSPA / LTE / 5G
2G bands
Razr 50 Ultra
GSM 900 / 1800 / 1900 , CDMA 800 / 1900
Signature 27
GSM 850 / 900 / 1800 / 1900
3G bands
Razr 50 Ultra
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 , CDMA2000 1xEV-DO
Signature 27
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
Razr 50 Ultra
Resolution
Refresh rate
equal specsPeak brightness
Pixel density
CPU speed
RAM
Storage
equal specsMain camera
equal specsFront camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
equal specsBluetooth
USB
5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
equal specs1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 34, 38, 39, 40, 41, 42, 43, 48, 66, 71
Signature 27
LTE
5G bands
Razr 50 Ultra
1, 2, 3, 5, 7, 8, 20, 26, 28, 38, 40, 41, 66, 71, 75, 77, 78 SA/NSA/Sub6
Signature 27
SA/NSA/Sub6
Speed
Razr 50 Ultra
HSPA, LTE, 5G
Signature 27
HSPA, LTE, 5G
Announced
Razr 50 Ultra
2024, June 25
Signature 27
2026, September 22
Status
Razr 50 Ultra
Available. Released 2024, June 25
Signature 27
Coming soon. Exp. release 2026, Oct-Nov
Dimensions
Razr 50 Ultra
Unfolded: 171.4 x 74 x 7.1 mmFolded: 88.1 x 74 x 15.3 mm
Signature 27
-
Weight
Razr 50 Ultra
189 g (6.67 oz)
Signature 27
-
Build
Razr 50 Ultra
Plastic front (unfolded), glass front (folded, Gorilla Glass Victus), silicone polymer back (eco leather), aluminum frame (6000 series), hinge (stainless steel)
Signature 27
Glass front (Gorilla Glass Victus 2), aluminum frame
SIM
Razr 50 Ultra
· Nano-SIM + eSIM· Nano-SIM + Nano-SIM
Signature 27
Nano-SIM + Nano-SIM
Other
Razr 50 Ultra
IPX8 water resistant (up to 1.5m for 30 min)
Signature 27
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
Razr 50 Ultra
Foldable LTPO AMOLED, 1B colors, Dolby Vision, 165Hz, HDR10+, 3000 nits (peak)
Signature 27
LTPO AMOLED, 1B colors, 165Hz, Dolby Vision, HDR10+
Size
Razr 50 Ultra
6.9 inches, 107.6 cm2 (~84.9% screen-to-body ratio)
Signature 27
6.8 inches, 112.4 cm2
Resolution
Razr 50 Ultra
1080 x 2640 pixels (~413 ppi density)
Signature 27
1264 x 2780 pixels (~449 ppi density)
Other
Razr 50 Ultra
Second external LTPO AMOLED, 1B colors, Dolby Vision, 165Hz, HDR10+, 2400 nits (peak) 4 inches, 1272 x 1080 pixels, 417 ppi, Gorilla Glass Victus
Signature 27
-
Protection
Razr 50 Ultra
-
Signature 27
Corning Gorilla Glass Victus 2
OS
Razr 50 Ultra
Android 14, up to 3 major Android upgrades
Signature 27
Android 17, up to 7 major OS updates
Chipset
Razr 50 Ultra
Qualcomm SM8635 Snapdragon 8s Gen 3 (4 nm)
Signature 27
Qualcomm SM8975 Snapdragon 8 Elite Extreme Gen 6 (2 nm)
CPU
Razr 50 Ultra
Octa-core (1x3.0 GHz Cortex-X4 & 4x2.8 GHz Cortex-A720 & 3x2.0 GHz Cortex-A520)
Signature 27
Octa-core (2x5.01 GHz Prime + 3x4.03 GHz Performance + 3x3.74 GHz Performance)
GPU
Razr 50 Ultra
Adreno 735
Signature 27
Adreno 850
Card slot
Razr 50 Ultra
No
Signature 27
No
Internal
Razr 50 Ultra
256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM
Signature 27
256GB 12GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
Other
Razr 50 Ultra
UFS 4.0
Signature 27
UFS 4.1
Dual
Razr 50 Ultra
50 MP, f/1.7, 24mm (wide), 1/1.95", 0.8µm, dual pixel PDAF, OIS 50 MP, f/2.0, 47mm (telephoto), 1/2.76", 0.64µm, PDAF, 2x optical zoom
Signature 27
-
Features
Razr 50 Ultra
LED flash, panorama, HDR
Signature 27
Dual-LED flash, HDR, panorama
Video
Razr 50 Ultra
4K@30/60fps, 1080p@30/60/120/240/960fps, HDR10+, gyro-EIS
Signature 27
8K@30fps (Dolby Vision), 4K@30/60fps (Dolby Vision), 4K@120fps, 1080p@30/60/120/240fps, 10-bit HDR10+, gyro-EIS
Triple
Razr 50 Ultra
-
Signature 27
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
Razr 50 Ultra
32 MP, f/2.4, 25mm (wide), 1/3.14", 0.7µm
Signature 27
50 MP, f/2.0, 21mm (wide), 1/2.93", 0.6µm, dual-pixel PDAF
Features
Razr 50 Ultra
HDR
Signature 27
HDR
Video
Razr 50 Ultra
4K@30/60fps, 1080p@30/60fps
Signature 27
4K@30/60fps, 1080p@30/60/120/240fps, HDR
Loudspeaker
Razr 50 Ultra
Yes, with stereo speakers
Signature 27
Yes, with stereo speakers (with Dolby Atmos)
3.5mm jack
Razr 50 Ultra
No
Signature 27
No
Other
Razr 50 Ultra
Snapdragon Sound
Signature 27
24-bit/192kHz Hi-Res & Hi-Res Wireless audio Sound by Bang & Olufsen
WLAN
Razr 50 Ultra
Wi-Fi 802.11 a/b/g/n/ac/6e/7, dual-band or tri-band (region dependent)
Signature 27
Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
Bluetooth
Razr 50 Ultra
5.4, A2DP, LE, aptX HD, aptX Adaptive, aptX Lossless
Signature 27
6.0, A2DP, LE
Positioning
Razr 50 Ultra
GPS (L1+L5), GLONASS (L1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5)
Signature 27
GPS, GLONASS, GALILEO, BDS, NavIC
NFC
Razr 50 Ultra
Yes
Signature 27
Yes
Radio
Razr 50 Ultra
No
Signature 27
No
USB
Razr 50 Ultra
USB Type-C 2.0, OTG
Signature 27
USB Type-C 3.1 Gen2, OTG, DisplayPort 1.4
Sensors
Razr 50 Ultra
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
Signature 27
Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass
Other
Razr 50 Ultra
-
Signature 27
Smart Connect (Ready For) support Ultra Wideband (UWB) support
Type
Razr 50 Ultra
4000 mAh
Signature 27
Si/C Li-Ion 7000 mAh
Charging
Razr 50 Ultra
45W wired 15W wireless 5W reverse wired
Signature 27
90W wired 50W wireless 10W reverse wireless 5W reverse wired
Colors
Razr 50 Ultra
Spring Green (Dill), Midnight Blue (Navy Blazer), Peach Fuzz, Mocha Mousse
Signature 27
Pantone: Coal Smoke, Capulet Olive
Models
Razr 50 Ultra
XT2451-3
Signature 27
-
Price
Razr 50 Ultra
C$ 1,491.00 / £ 674.95 / € 599.99
Signature 27
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