Sonim XP400

Name: Sonim XP400
Brand: Sonim

Display6.5"

ChipsetSnapdragon 4 Gen 2

Main camera50MP

Battery5000 mAh

5.6GoSolo score

More Sonim

Network

Technology

GSM / HSPA / LTE / 5G

2G bands

GSM 850 / 900 / 1800 / 1900

3G bands

HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100

4G bands

1, 3, 5, 7, 8, 20, 26, 28, 32, 38, 40, 41, 42, 68, 71

5G bands

1, 3, 5, 7, 8, 20, 26, 28, 38, 40, 41, 71, 75, 77, 78 SA/NSA

Speed

HSPA, LTE, 5G

Launch

Announced

2025, January 22

Status

Available

Body

Dimensions

170 x 78 x 10.2 mm (6.69 x 3.07 x 0.40 in)

Weight

230 g (8.11 oz)

SIM

Nano-SIM + Nano-SIM

Durability

IP68/IP69K dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min)MIL-STD-810H compliant

Display

Type

IPS LCD

Size

6.5 inches, 101.5 cm2(~76.5% screen-to-body ratio)

Resolution

720 x 1612 pixels, 20:9 ratio (~272 ppi density)

Protection

Corning Gorilla Glass Victus 2

Platform

Android 14, up to 2 major Android upgrades

Chipset

Qualcomm SM4450 Snapdragon 4 Gen 2 (4 nm)

CPU

Octa-core (2x2.2 GHz Cortex-A78 & 6x1.95 GHz Cortex-A55)

GPU

Adreno 613

Memory

Card slot

microSDXC (uses shared SIM slot)

Internal

128GB 6GB RAM

Main Camera

Modules

50 MP, (wide), PDAF5 MP, (ultrawide)

Features

LED flash

Video

1080p@30fps

Selfie Camera

Module

8 MP, (wide)

Features

1080p@30fps

Sound

Loudspeaker

Yes, with stereo speakers

3.5mm jack

Comms

WLAN

Wi-Fi 802.11 a/b/g/n/ac, dual-band

Bluetooth

5.1, A2DP, LE

Positioning

GPS (L1+L5), GALILEO, GLONASS

NFC

Yes

Radio

FM radio

USB

USB Type-C 3.1

Features

Sensors

Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer

Battery

Type

5000 mAh

Misc

Colors

Black

GoSolo Read / what it means6 takeaways

durability

IP68/IP69K, MIL-STD-810H ratedSurvives dust, submersion to 1.5m for 30 minutes, high-pressure water jets, and military-grade drops, so it handles job sites, beaches, and rough daily life without breaking.

battery

5000mAh, about 1 to 1.5 daysThe 5000mAh cell should deliver roughly 6 to 8 hours of screen time in moderate use, stretching to a full day on lighter usage or standby, though charging specs are missing so you cannot predict refill speed.

display

6.5 inches, 272ppi, IPS LCDThe 720p resolution at 272ppi on an IPS LCD will look slightly soft up close and lacks the brightness peak of AMOLED, but Gorilla Glass Victus 2 protects it from scratches and the 76.5% screen-to-body ratio keeps the phone narrow for a 6.5-inch screen.

performance

Snapdragon 4 Gen 2, 6GB RAMThe SM4450 and Adreno 613 handle routine apps, calls, messaging, and browsing at steady frame rates, but will struggle with heavy games or sustained multitasking without frame drops.

camera

50MP main, 5MP ultra-wideThe 50MP PDAF and 1080p video cover everyday shots, group photos via ultra-wide, and basic video, but lack telephoto zoom and 4K, limiting distant detail and premium video work.

connectivity

5G, dual-SIM, NFC, USB 3.1Supports 5G bands 1, 3, 5, 7, 8, 20, 26, 28, 38, 40, 41, 71, 75, 77, 78 and dual Nano-SIM, so you can stay on one or two networks; NFC and USB 3.1 add payment and fast file transfer.