Screen size
equal specsWP55 Ultra6.6"
WP666.6"
Quick verdict
WP55 Ultra leads the measured specs 4-2.
Measured wins
WP55 Ultra
4
spec wins
Overall winner
Ties
16
equal specs
WP66
2
spec wins
Screen size
equal specsTechnology
WP55 Ultra
GSM / HSPA / LTE / 5G
WP66
GSM / HSPA / LTE / 5G
2G bands
WP55 Ultra
GSM 850 / 900 / 1800 / 1900
WP66
GSM 850 / 900 / 1800 / 1900
3G bands
WP55 Ultra
HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
WP66
HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
WP55 Ultra
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 66, 71
Resolution
equal specsRefresh rate
equal specsPeak brightness
equal specsPixel density
equal specsCPU speed
equal specsRAM
Storage
Main camera
equal specsFront camera
equal specsBattery
equal specsWired charging
equal specsWeight
Thickness
IP rating
equal specsWi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
WP66
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 66, 71
5G bands
WP55 Ultra
1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 34, 38, 39, 40, 41, 48, 66, 71, 77, 78 SA/NSA
WP66
1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 34, 38, 39, 40, 41, 48, 66, 71, 77, 78 SA/NSA
Speed
WP55 Ultra
HSPA, LTE, 5G
WP66
HSPA, LTE, 5G
Announced
WP55 Ultra
2025, May
WP66
2026, January 15
Status
WP55 Ultra
Available. Released 2025, May
WP66
Available. Released 2026, March 30
Dimensions
WP55 Ultra
172.2 x 81 x 15.3 mm (6.78 x 3.19 x 0.60 in)
WP66
172.2 x 81 x 15.8 mm (6.78 x 3.19 x 0.62 in)
Weight
WP55 Ultra
367.6 g (12.98 oz)
WP66
359 g (12.66 oz)
SIM
WP55 Ultra
Nano-SIM + Nano-SIM
WP66
Nano-SIM + Nano-SIM
Other
WP55 Ultra
IP68/IP69K dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min) Drop resistant up to 1.5m MIL-STD-810H compliant Dedicated flood flashlight
WP66
IP68/IP69K dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min) Drop resistant up to 1.5m MIL-STD-810H compliant
Type
WP55 Ultra
IPS LCD, 120Hz, 450 nits
WP66
IPS LCD, 120Hz, 450 nits
Size
WP55 Ultra
6.6 inches, 104.9 cm2 (~75.2% screen-to-body ratio)
WP66
6.6 inches, 104.9 cm2 (~75.2% screen-to-body ratio)
Resolution
WP55 Ultra
1080 x 2408 pixels, 20:9 ratio (~400 ppi density)
WP66
1080 x 2408 pixels, 20:9 ratio (~400 ppi density)
Protection
WP55 Ultra
Corning Gorilla Glass 5, Mohs level 5
WP66
Corning Gorilla Glass 5, Mohs level 7
Other
WP55 Ultra
-
WP66
Rear display: IPS LCD, 1.81", 240 x 284 pixels, 205 PPI, 450 nits
OS
WP55 Ultra
Android 15
WP66
Android 15
Chipset
WP55 Ultra
Mediatek Dimensity 7025 (6 nm)
WP66
Mediatek Dimensity 7025 (6 nm)
CPU
WP55 Ultra
Octa-core (2x2.5 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55)
WP66
Octa-core (2x2.5 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55)
GPU
WP55 Ultra
IMG BXM-8-256
WP66
IMG BXM-8-256
Card slot
WP55 Ultra
microSDXC (uses shared SIM slot)
WP66
microSDXC (uses shared SIM slot)
Internal
WP55 Ultra
512GB 16GB RAM
WP66
256GB 12GB RAM
Triple
WP55 Ultra
108 MP, f/2.2, (wide), 1/1.8", PDAF 8 MP, f/2.2, (night vision), 1/1.78", AF 5 MP, f/2.2, (thermal), 1/1.5"
WP66
-
Features
WP55 Ultra
LED flash, HDR, panorama
WP66
LED flash, HDR, panorama
Video
WP55 Ultra
1440p@30fps
WP66
1440p@30fps, 1080p@30fps
Dual
WP55 Ultra
-
WP66
108 MP, f/1.9, (wide), 1/1.8", PDAF 2 MP (macro)
Single
WP55 Ultra
32 MP, f/2.2, (wide), 1/2.74"
WP66
32 MP, f/2.2, (wide), 1/2.74"
Video
WP55 Ultra
1440p@30fps
WP66
1080p@30fps
Loudspeaker
WP55 Ultra
Yes
WP66
Yes
3.5mm jack
WP55 Ultra
No
WP66
No
WLAN
WP55 Ultra
Wi-Fi 802.11 a/b/g/n/ac, dual-band
WP66
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
WP55 Ultra
5.2, A2DP, LE
WP66
5.2, A2DP, LE
Positioning
WP55 Ultra
GPS (L1+L5), GLONASS, GALILEO, BDS
WP66
GPS, GALILEO, GLONASS, BDS
NFC
WP55 Ultra
Yes
WP66
Yes
Radio
WP55 Ultra
FM radio
WP66
FM radio
USB
WP55 Ultra
USB Type-C 2.0
WP66
USB Type-C 2.0, OTG
Sensors
WP55 Ultra
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
WP66
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
Type
WP55 Ultra
Li-Po 11000 mAh
WP66
Li-Po 11000 mAh
Charging
WP55 Ultra
33W wired
WP66
33W wired Reverse wired
Colors
WP55 Ultra
Black, Red, Gray
WP66
Black, Orange
Price
WP55 Ultra
-
WP66
$ 409.80