Side-by-side comparison

Lenovo Vibe X3 c78 vs Xiaomi Redmi K40

Name: Lenovo Vibe X3 c78
Brand: Lenovo
SKU: appsapk-2864
Rating: 7.9 (740 reviews)

Lenovo

Lenovo Vibe X3 c78

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Lenovo Vibe X3 c78 — quick specs

Network
LTE / HSPA / GSM
Display
5.5 inches · 1080×1920
Camera
13 MP
Memory
2 GB RAM
Battery
3300 mAh
OS
Android 5.1

Xiaomi Redmi K40 — quick specs

Network
5G / LTE
Display
—
Camera
—
Memory
256 GB
Battery
Non-removable Li-Po
OS
—

● Full specification comparison

Spec

Lenovo Vibe X3 c78

Xiaomi Redmi K40

NETWORK

Technology

GSM / HSPA / LTE

2G, 3G, 4G, 4G LTE, 5G

Technology

AGSM / HSPA / LTE

B2G, 3G, 4G, 4G LTE, 5G

2G bands

GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2

—

2G bands

AGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2

B—

3G bands

HSDPA 850 / 900 / 1900 / 2100 , TD-SCDMA

—

3G bands

AHSDPA 850 / 900 / 1900 / 2100 , TD-SCDMA

B—

4G bands

LTE band 1(2100), 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500)

—

4G bands

ALTE band 1(2100), 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500)

B—

Speed

HSPA, LTE

—

Speed

AHSPA, LTE

B—

LAUNCH

Announced

2015, November

K40/Pro/Pro+: / Poco F3: / Mi 11i: / Mi 11X/Pro: / K40 Gaming: / Poco F3 GT: / K40S: / Poco F4:

Announced

A2015, November

BK40/Pro/Pro+: / Poco F3: / Mi 11i: / Mi 11X/Pro: / K40 Gaming: / Poco F3 GT: / K40S: / Poco F4:

Status

Available. Released 2015, December

Available. Released 2021

Status

AAvailable. Released 2015, December

BAvailable. Released 2021

BODY

Dimensions

153.6 x 76.5 x 9.2 mm (6.05 x 3.01 x 0.36 in)

—

Dimensions

A153.6 x 76.5 x 9.2 mm (6.05 x 3.01 x 0.36 in)

B—

SIM

Hybrid Dual SIM (Micro-SIM, dual stand-by)

—

SIM

AHybrid Dual SIM (Micro-SIM, dual stand-by)

B—

Build

—

Slate

Build

A—

BSlate

DISPLAY

Type

IPS LCD capacitive touchscreen, 16M colors

6.67 in AMOLED capacitive touchscreen, 1080p 1080 × 2400 pixels (2.5 MP), 20:9 aspect ratio (395ppi), 120Hz refresh rate, HDR10+

Type

AIPS LCD capacitive touchscreen, 16M colors

B6.67 in AMOLED capacitive touchscreen, 1080p 1080 × 2400 pixels (2.5 MP), 20:9 aspect ratio (395ppi), 120Hz refresh rate, HDR10+

Size

5.5 inches, 83.4 cm2 (~71.0% screen-to-body ratio)

—

Size

A5.5 inches, 83.4 cm2 (~71.0% screen-to-body ratio)

B—

Resolution

1080 x 1920 pixels, 16:9 ratio (~401 ppi density)

—

Resolution

A1080 x 1920 pixels, 16:9 ratio (~401 ppi density)

B—

Protection

Corning Gorilla Glass 3

—

Protection

ACorning Gorilla Glass 3

B—

PLATFORM

Android 5.1 (Lollipop)

—

AAndroid 5.1 (Lollipop)

B—

Chipset

Mediatek MT6753 (28 nm)

—

Chipset

AMediatek MT6753 (28 nm)

B—

CPU

Octa-core 1.3 GHz Cortex-A53

Octa-core

CPU

AOcta-core 1.3 GHz Cortex-A53

BOcta-core

GPU

Mali-T720MP3

—

GPU

AMali-T720MP3

B—

MEMORY

Card slot

microSD, up to 256 GB (uses shared SIM slot)

None

Card slot

AmicroSD, up to 256 GB (uses shared SIM slot)

BNone

Internal

16GB 2GB RAM

128 or 256GB UFS 3.1

Internal

A16GB 2GB RAM

B128 or 256GB UFS 3.1

MAIN CAMERA

Features

Dual-LED dual-tone flash, panorama, HDR

—

Features

ADual-LED dual-tone flash, panorama, HDR

B—

Video

1080p@30fps

—

Video

A1080p@30fps

B—

Single

13 MP, f/2.0, PDAF

—

Single

A13 MP, f/2.0, PDAF

B—

SELFIE CAMERA

Single

5 MP

20 MP, (f/2.2, 27mm, 1/3.4", 0.8 μm) / HDR, 1080p@30fps, 720p@120fps

Single

A5 MP

B20 MP, (f/2.2, 27mm, 1/3.4", 0.8 μm) / HDR, 1080p@30fps, 720p@120fps

SOUND

Loudspeaker

Yes, with stereo speakers

Stereo loudspeakers

Loudspeaker

AYes, with stereo speakers

BStereo loudspeakers

3.5mm jack

Yes Dolby Atmos sound 24-bit/192kHz audio Active noise cancellation with dedicated mic

3.5mm jack

AYes Dolby Atmos sound 24-bit/192kHz audio Active noise cancellation with dedicated mic

BNo

COMMS

WLAN

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

Wi-Fi 802.11a/b/g/n/6/6e (2.4 & 5GHz), dual-band, WiFi Direct, DLNA, hotspot Bluetooth V5.1/5.2, A2DP, Low-energy, aptX-HD, NFC, USB 2.0 Type-C, Infrared Blaster, GNSS (A-GPS, GLONASS, GALILEO, BDS, QZSS, NAVIC)

WLAN

AWi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, hotspot

BWi-Fi 802.11a/b/g/n/6/6e (2.4 & 5GHz), dual-band, WiFi Direct, DLNA, hotspot Bluetooth V5.1/5.2, A2DP, Low-energy, aptX-HD, NFC, USB 2.0 Type-C, Infrared Blaster, GNSS (A-GPS, GLONASS, GALILEO, BDS, QZSS, NAVIC)

Bluetooth

4.1, A2DP, LE

5.x, A2DP, LE

Bluetooth

A4.1, A2DP, LE

B5.x, A2DP, LE

GPS

Yes, with A-GPS, GLONASS

Yes, with A-GPS, GLONASS, BDS, GALILEO

GPS

AYes, with A-GPS, GLONASS

BYes, with A-GPS, GLONASS, BDS, GALILEO

USB

microUSB 2.0

USB Type-C

USB

AmicroUSB 2.0

BUSB Type-C

Radio

—

Radio

ANo

B—

NFC

—

Yes

NFC

A—

BYes

FEATURES

Sensors

Fingerprint (rear-mounted), accelerometer, proximity, compass

Fingerprint, accelerometer, gyro, proximity, compass, barometer

Sensors

AFingerprint (rear-mounted), accelerometer, proximity, compass

BFingerprint, accelerometer, gyro, proximity, compass, barometer

BATTERY

Battery Type

Non-removable Li-Po 3300 mAh battery

Non-removable Li-Po

Battery Type

ANon-removable Li-Po 3300 mAh battery

BNon-removable Li-Po

Charging

—

Fast charging

Charging

A—

BFast charging

MISC

Colors

White, Black

—

Colors

AWhite, Black

B—

Models

K51c78

—

Models

AK51c78

B—

Price

351 USD

—

Price

A351 USD

B—

Cells highlighted in green indicate a measurably better spec on that phone (battery capacity, RAM, storage, display size). Text-only specs are shown side by side without highlighting.

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