Screen size
Quick verdict
Signature 27 leads the measured specs 16-4.
Measured wins
Moto Z4
4
spec wins
Ties
2
equal specs
Signature 27
16
spec wins
Overall winner
Screen size
Technology
Moto Z4
GSM / CDMA / HSPA / LTE
Signature 27
GSM / HSPA / LTE / 5G
2G bands
Moto Z4
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900
Signature 27
GSM 850 / 900 / 1800 / 1900
3G bands
Moto Z4
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - USA
Signature 27
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
Moto Z4
1, 2, 3, 4, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 30, 38, 40, 41, 66, 71 - USA
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
equal specs5G support
NFC
equal specs3.5mm jack
SD card
Stereo speakers
Signature 27
LTE
Speed
Moto Z4
HSPA, LTE
Signature 27
HSPA, LTE, 5G
5G bands
Moto Z4
-
Signature 27
SA/NSA/Sub6
Announced
Moto Z4
2019, May. Released 2019, June
Signature 27
2026, September 22
Status
Moto Z4
Discontinued
Signature 27
Coming soon. Exp. release 2026, Oct-Nov
Dimensions
Moto Z4
158 x 75 x 7.4 mm (6.22 x 2.95 x 0.29 in)
Signature 27
-
Weight
Moto Z4
165 g (5.82 oz)
Signature 27
-
Build
Moto Z4
Glass front (Gorilla Glass 3), glass back, aluminum frame
Signature 27
Glass front (Gorilla Glass Victus 2), aluminum frame
SIM
Moto Z4
· Nano-SIM· Nano-SIM + Nano-SIM
Signature 27
Nano-SIM + Nano-SIM
Other
Moto Z4
Splash and dust resistant
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
Moto Z4
OLED
Signature 27
LTPO AMOLED, 1B colors, 165Hz, Dolby Vision, HDR10+
Size
Moto Z4
6.4 inches, 100.5 cm2 (~84.8% screen-to-body ratio)
Signature 27
6.8 inches, 112.4 cm2
Resolution
Moto Z4
1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)
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1264 x 2780 pixels (~449 ppi density)
Protection
Moto Z4
Corning Gorilla Glass 3
Signature 27
Corning Gorilla Glass Victus 2
OS
Moto Z4
Android 9.0 (Pie), upgradable to Android 10
Signature 27
Android 17, up to 7 major OS updates
Chipset
Moto Z4
Qualcomm SDM675 Snapdragon 675 (11 nm)
Signature 27
Qualcomm SM8975 Snapdragon 8 Elite Extreme Gen 6 (2 nm)
CPU
Moto Z4
Octa-core (2x2.0 GHz Kryo 460 Gold & 6x1.7 GHz Kryo 460 Silver)
Signature 27
Octa-core (2x5.01 GHz Prime + 3x4.03 GHz Performance + 3x3.74 GHz Performance)
GPU
Moto Z4
Adreno 612
Signature 27
Adreno 850
Card slot
Moto Z4
microSDXC (uses shared SIM slot)
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No
Internal
Moto Z4
128GB 4GB RAM
Signature 27
256GB 12GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
Other
Moto Z4
UFS 2.1
Signature 27
UFS 4.1
Single
Moto Z4
48 MP, f/1.7, (wide), 1/2.0", 0.8µm, PDAF, OIS
Signature 27
-
Features
Moto Z4
Dual-LED dual-tone flash, panorama, HDR
Signature 27
Dual-LED flash, HDR, panorama
Video
Moto Z4
4K@30fps, 1080p@30/60fps
Signature 27
8K@30fps (Dolby Vision), 4K@30/60fps (Dolby Vision), 4K@120fps, 1080p@30/60/120/240fps, 10-bit HDR10+, gyro-EIS
Triple
Moto Z4
-
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
Moto Z4
25 MP, f/2.0, 0.9µm
Signature 27
50 MP, f/2.0, 21mm (wide), 1/2.93", 0.6µm, dual-pixel PDAF
Features
Moto Z4
HDR
Signature 27
HDR
Video
Moto Z4
1080p@30fps
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4K@30/60fps, 1080p@30/60/120/240fps, HDR
Loudspeaker
Moto Z4
Yes
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Yes, with stereo speakers (with Dolby Atmos)
3.5mm jack
Moto Z4
Yes
Signature 27
No
Other
Moto Z4
-
Signature 27
24-bit/192kHz Hi-Res & Hi-Res Wireless audio Sound by Bang & Olufsen
WLAN
Moto Z4
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Signature 27
Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
Bluetooth
Moto Z4
5.0, A2DP, LE, EDR
Signature 27
6.0, A2DP, LE
Positioning
Moto Z4
GPS, GLONASS, GALILEO
Signature 27
GPS, GLONASS, GALILEO, BDS, NavIC
NFC
Moto Z4
Yes
Signature 27
Yes
Radio
Moto Z4
FM radio
Signature 27
No
USB
Moto Z4
USB Type-C 3.1, OTG, magnetic connector
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USB Type-C 3.1 Gen2, OTG, DisplayPort 1.4
Sensors
Moto Z4
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
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Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass
Other
Moto Z4
Moto Mods snap-on accessories
Signature 27
Smart Connect (Ready For) support Ultra Wideband (UWB) support
Type
Moto Z4
Li-Ion 3600 mAh, non-removable
Signature 27
Si/C Li-Ion 7000 mAh
Charging
Moto Z4
15W wired
Signature 27
90W wired 50W wireless 10W reverse wireless 5W reverse wired
Colors
Moto Z4
Flash Grey, Frost White
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Pantone: Coal Smoke, Capulet Olive
SAR
Moto Z4
1.16 W/kg (head) 1.44 W/kg (body)
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-
Price
Moto Z4
About 500 EUR
Signature 27
-