Screen size
Razr 40 UltraWinner: 6.9"+1.4%
Signature 276.8"
Quick verdict
Signature 27 leads the measured specs 11-4.
Measured wins
Razr 40 Ultra
4
spec wins
Ties
8
equal specs
Signature 27
11
spec wins
Overall winner
Screen size
Technology
Razr 40 Ultra
GSM / CDMA / HSPA / EVDO / LTE / 5G
Signature 27
GSM / HSPA / LTE / 5G
2G bands
Razr 40 Ultra
GSM 900 / 1800 / 1900 , CDMA 800 / 1900
Signature 27
GSM 850 / 900 / 1800 / 1900
3G bands
Razr 40 Ultra
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 , CDMA2000 1xEV-DO
Signature 27
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
Razr 40 Ultra
Resolution
Refresh rate
equal specsPeak brightness
Pixel density
CPU speed
RAM
Storage
equal specsMain camera
Front 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 - International, 1, 2, 3, 4, 5, , 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71 - North America
Signature 27
LTE
5G bands
Razr 40 Ultra
1, 3, 5, 7, 8, 20, 28, 38, 41, 66, 77, 78, 79 SA/NSA/Sub6 - International, 2, 5, 7, 12, 13, 14, 25, 26, 29, 30, 38, 41, 48, 66, 70, 71, 77, 78 SA/NSA/Sub6 - North America
Signature 27
SA/NSA/Sub6
Speed
Razr 40 Ultra
HSPA, LTE, 5G
Signature 27
HSPA, LTE, 5G
Announced
Razr 40 Ultra
2023, June 01
Signature 27
2026, September 22
Status
Razr 40 Ultra
Available. Released 2023, June 05
Signature 27
Coming soon. Exp. release 2026, Oct-Nov
Dimensions
Razr 40 Ultra
Unfolded: 170.8 x 74 x 7 mmFolded: 88.4 x 74 x 15.1 mm
Signature 27
-
Weight
Razr 40 Ultra
184.5 g or 188.5 g (6.53 oz)
Signature 27
-
Build
Razr 40 Ultra
Plastic front (unfolded), glass front (folded, Gorilla Glass Victus), glass back (Gorilla Glass Victus), aluminum frame (7000 series), hinge (stainless steel)
Signature 27
Glass front (Gorilla Glass Victus 2), aluminum frame
SIM
Razr 40 Ultra
· Nano-SIM + eSIM· Nano-SIM + Nano-SIM
Signature 27
Nano-SIM + Nano-SIM
Other
Razr 40 Ultra
Water-repellent coating
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 40 Ultra
Foldable LTPO AMOLED, 1B colors, 165Hz, HDR10+, 1400 nits (peak)
Signature 27
LTPO AMOLED, 1B colors, 165Hz, Dolby Vision, HDR10+
Size
Razr 40 Ultra
6.9 inches, 107.6 cm2 (~85.1% screen-to-body ratio)
Signature 27
6.8 inches, 112.4 cm2
Resolution
Razr 40 Ultra
1080 x 2640 pixels (~413 ppi density)
Signature 27
1264 x 2780 pixels (~449 ppi density)
Other
Razr 40 Ultra
Second external AMOLED, 1B colors, 144Hz, HDR10+, 1100 nits (peak) 3.6 inches, 1056 x 1066 pixels, 413 ppi, Gorilla Glass Victus
Signature 27
-
Protection
Razr 40 Ultra
-
Signature 27
Corning Gorilla Glass Victus 2
OS
Razr 40 Ultra
Android 13, up to 3 major Android upgrades
Signature 27
Android 17, up to 7 major OS updates
Chipset
Razr 40 Ultra
Qualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm)
Signature 27
Qualcomm SM8975 Snapdragon 8 Elite Extreme Gen 6 (2 nm)
CPU
Razr 40 Ultra
Octa-core (1x3.19 GHz Cortex-X2 & 3x2.75 GHz Cortex-A710 & 4x1.80 GHz Cortex-A510)
Signature 27
Octa-core (2x5.01 GHz Prime + 3x4.03 GHz Performance + 3x3.74 GHz Performance)
GPU
Razr 40 Ultra
Adreno 730
Signature 27
Adreno 850
Card slot
Razr 40 Ultra
No
Signature 27
No
Internal
Razr 40 Ultra
256GB 4GB RAM, 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 40 Ultra
UFS 3.1
Signature 27
UFS 4.1
Dual
Razr 40 Ultra
12 MP, f/1.5, (wide), 1/2.55", 1.4µm, PDAF, OIS 13 MP, f/2.2, 108˚ (ultrawide), 1/3.0", 1.12µm, AF
Signature 27
-
Features
Razr 40 Ultra
LED flash, panorama, HDR
Signature 27
Dual-LED flash, HDR, panorama
Video
Razr 40 Ultra
4K@30/60fps, 1080p@30/60/120fps, 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 40 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 40 Ultra
32 MP, f/2.4, (wide), 0.7µm
Signature 27
50 MP, f/2.0, 21mm (wide), 1/2.93", 0.6µm, dual-pixel PDAF
Features
Razr 40 Ultra
HDR
Signature 27
HDR
Video
Razr 40 Ultra
4K@30/60fps, 1080p@30/60fps
Signature 27
4K@30/60fps, 1080p@30/60/120/240fps, HDR
Loudspeaker
Razr 40 Ultra
Yes, with stereo speakers
Signature 27
Yes, with stereo speakers (with Dolby Atmos)
3.5mm jack
Razr 40 Ultra
No
Signature 27
No
Other
Razr 40 Ultra
Snapdragon Sound
Signature 27
24-bit/192kHz Hi-Res & Hi-Res Wireless audio Sound by Bang & Olufsen
WLAN
Razr 40 Ultra
Wi-Fi 802.11 a/b/g/n/ac/6e, 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 40 Ultra
5.3, A2DP, LE, aptX HD, aptX Adaptive, aptX Lossless
Signature 27
6.0, A2DP, LE
Positioning
Razr 40 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 40 Ultra
Yes
Signature 27
Yes
Radio
Razr 40 Ultra
No
Signature 27
No
USB
Razr 40 Ultra
USB Type-C 2.0
Signature 27
USB Type-C 3.1 Gen2, OTG, DisplayPort 1.4
Sensors
Razr 40 Ultra
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer (USA only)
Signature 27
Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass
Other
Razr 40 Ultra
-
Signature 27
Smart Connect (Ready For) support Ultra Wideband (UWB) support
Type
Razr 40 Ultra
Li-Po 3800 mAh
Signature 27
Si/C Li-Ion 7000 mAh
Charging
Razr 40 Ultra
30W wired 5W wireless
Signature 27
90W wired 50W wireless 10W reverse wireless 5W reverse wired
Colors
Razr 40 Ultra
Infinite Black, Glacier Blue, Viva Magenta, Peach Fuzz
Signature 27
Pantone: Coal Smoke, Capulet Olive
Models
Razr 40 Ultra
XT2321-3, XT2321-1, XT2321-2
Signature 27
-
Price
Razr 40 Ultra
$ 208.50 / £ 788.00 / € 803.99
Signature 27
-