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Lenovo Vibe Z2 Pro (K920) vs Samsung W21 5G

Side by side comparison between Lenovo Vibe Z2 Pro vs Samsung W21 5G phones, differences, pros, cons and full specifications. What's the better?

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Compare Samsung W21 5G X Lenovo Vibe Z2 Pro (K920) 05Points
6"
IPS

1440x2560

16
MP

5mp

3GB
RAM

Quad-core

4000
mAh

(Non removable)

vs
7.6"
AMOLED

1768x2208

12.2
MP

10mp

12GB
RAM

Octa-core

4500
mAh

(Non removable)

What's the better phone? Samsung W21 5G

The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!

Vibe Z2 Pro (K920)} 5 Advantages Lenovo Vibe Z2 Pro (K920) vs W21 5G} 26 Advantages Samsung W21 5G
+179 grams (6.27 ounces)58%
Lighter
vs282 grams (9.87 ounces)
+490 PPI32%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
vs372 PPI
+Dual-LED flashAdvantage
The Dual-LED flash helps in dark places or in low light
vsLED flash
+3.5mm jackAdvantage
Headsets with 3.5mm Jack size are more common and easy to find in stores
vsType-C reversible connector
+FMAdvantage
The radio lets you listen to your songs and sports in general
vsNot supported
2.5GHz 32bit Quad-corevs+3.09GHz 64bit Octa-core (7nm)61%
More powerful processor, you can open your applications faster
3GB LPDDR3vs+12GB LPDDR53 times
More RAM memory. Typically more responsive and better for multitasking.
32GBvs+512GB (455GB available)13 times
More internal storage for applications and files
7.7 millimeters (0.3 inches)vs+6.9 millimeters (0.27 inches)12%
Thinner
TFT IPS LCDvs+Flexible Super AMOLEDAdvantage
Flexible Super AMOLED display is brighter and more vivid
1440x2560 pixelsvs+1768x2208 pixels6%
Higher resolution screen
6"vs+7.6"27%
Larger screen
(back) 16MPvs+(triple camera) 12.2MP + 12MP + 12MP127%
Higher resolution main camera
Only digital zoomvs+Digital and optical zoomAdvantage
The zoom allows for better focus and approach to take pictures
HDR photo only main cameravs+HDR photo/video on both camerasAdvantage
The HDR technology produced photos with more detail in dark areas
(front) 5MPvs+(front) 10MP99%
Higher resolution secondary camera to take pictures and selfies
(front) Full HD (1920x1080)vs+(front) 4K UHD (3840x2160)3 times
More image quality for recording videos with the secondary camera
Android 4.4.2 KitKatvs+Android 13Advantage
Android 13 is newer and safer
4G LTE-Avs+5G SA/NSAAdvantage
The 5G SA/NSA network is newer and faster
(4G LTE-A) 150 Mbpsvs+(5G SA/NSA) 2000 Mbps12 times
Faster for surfing the internet and download files
Not supportedvs+ANT+Advantage
Sensors help you use the device
Not supportedvs+BarometerAdvantage
Sensors help you use the device
Not supportedvs+Face unlockAdvantage
Sensors help you use the device
Not supportedvs+Fingerprint sensor (side-mounted)Advantage
Sensors help you use the device
Not supportedvs+GyroscopeAdvantage
Sensors help you use the device
4000 mAhvs+4500 mAh13%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
802.11 a/b/g/n [wifi4]vs+802.11 a/b/g/n/ac/ax [wifi6]Advantage
WiFi 802.11 a/b/g/n/ac/ax [wifi6] is newer and faster
Not supportedvs+DLNAAdvantage
With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.
4.0 + A2DPvs+5.0 + A2DP/LEAdvantage
Bluetooth 5.0 + A2DP/LE is newer and faster
MicroUSB 2.0vs+USB 3.2 Type-C, USB OTG On-The-GoAdvantage
Newer and faster USB version for transferring photos, mp3 or data.
MicroUSB 2.0vs+Type-CAdvantage
Reversible connector, you can stick in a USB-C cable any which way; either side is up.

20 Common items in both devices
16 million
Autofocus / PDAF: phase detection autofocus
BSI sensor
4K UHD (3840x2160)
Capacitive
Multitouch
Accelerometer
+13 specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differences Clear highlight

πŸ“± Model features

Lenovo Vibe Z2 Pro (K920)Samsung W21 5G
Change model  
ModelVibe Z2 Pro (K920)W21 5G
Other model namesPhablet Lenovo K920 Vibe Z2 Pro LTE-AδΈ‰ζ˜ŸW21 5G SM-W2021 (China Telecom edition)
Country or region availablefeature not registeredChina
China
BrandLenovoSamsung
Release date9/1/201411/1/2020
Depth7.7 millimeters (0.3 inches)6.9 millimeters (0.27 inches)
Size (width x height)81.3 x 156 millimeters (3.2 x 6.14 in)128.2 x 159.2 millimeters (5.05 x 6.27 in)
Weight179 grams (6.27 ounces)282 grams (9.87 ounces)
Build, materialsfeature not registeredAluminum frame, flexible plastic screen, glass back
Protection against water and othersNot supportedNot supported

πŸ“² Display

Lenovo Vibe Z2 Pro (K920)Samsung W21 5G
Display typeTFT IPS LCDFlexible Super AMOLED
Screen size6" inches7.6" inches
Screen-to-body ratio~78.3% (screen-to-body ratio)~89.1% (screen-to-body ratio)
Display resolution1440x2560 pixels1768x2208 pixels
TouchscreenCapacitive MultitouchCapacitive Multitouch
Pixel density (dot pitch)490 PPI372 PPI
Colors16 million16 million
Scratch-resistant glassGorilla Glass 3Gorilla Glass Victus
Refresh ratefeature not registered120Hz
Display featuresfeature not registeredHDR10+
Extra display: Super AMOLED 6.23" (816x2260) Gorilla Glass Victus

πŸ€– Operating System

Lenovo Vibe Z2 Pro (K920)Samsung W21 5G
System versionAndroid 4.4.2 KitKatAndroid 10
Firmware updatefeature not registeredAndroid 13
User Interfacefeature not registeredOne UI 3.1 / 4.1 / 5.0

βš™οΈ Processor

Lenovo Vibe Z2 Pro (K920)Samsung W21 5G
Chipset32bit: Qualcomm Snapdragon 801 MSM8974-AC (28nm)64bit: Qualcomm Snapdragon 865+ (SM8250-AB) (7nm)
CPUQuad-core, 1 processor:
4x 2.5GHz Krait 400 (Quad-core)
Octa-core, 3 processors:
1x 3.09GHz Kryo 585 (Single-core)
3x 2.42GHz Kryo 585 (Triple-core)
4x 1.8GHz Kryo 585 (Quad-core)
GPU graphical controllerQualcomm Adreno 330 578MhzQualcomm Adreno 650 (250-646MHz)
Performance (benchmark)feature not registeredfeature not registered

πŸ’½ Memory and storage

Lenovo Vibe Z2 Pro (K920)Samsung W21 5G
RAM memory3GB LPDDR312GB LPDDR5
Internal storage32GB512GB (455GB available)
UFS 3.1
External storageNot supportedNot supported

πŸ“Ά Mobile networks

Lenovo Vibe Z2 Pro (K920)Samsung W21 5G
Dual-SIMDual-SIM Standby - Call active on one sim cardDual-SIM Standby - Call active on one sim card
SIM card2 slots (Dual-SIM)
micro-SIM (3FF)
2 slots (Dual-SIM)
nano-SIM (4FF)
Maximum Download / Upload150/50 Mbps2000/1024 Mbps
Network technology2G, 3G, 4G2G, 3G, 4G, 5G
Frequency, bands Expand band details Collapse details
GSM MHz bandQuad-Band 850/900/1800/1900Quad-Band 850/900/1800/1900
Primary 2G networkGSM 850/900/1800/1900GSM 850/900/1800/1900
Primary 3G networkUMTS 850/900/1700/1900/2100UMTS 850/900/1900/2100
Primary 4G networkLTE 800/850/900/1800/2100/2600LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 25, 26, 28)
TD-LTE (34, 38, 39, 40, 41)
VoLTE
Primary 5G networkNot supportedSub6 (1, 28, 41, 78, 79)
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE, LTE-AGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA
Secondary 2G networkGSM 850/900/1800/1900GSM 850/900/1800/1900
Secondary 3G networkNot supportedUMTS 850/900/1900/2100
Secondary 4G networkNot supportedLTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 25, 26, 28)
TD-LTE (34, 38, 39, 40, 41)
VoLTE
Secondary data networkGPRS, EDGEGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA

πŸ“· Camera

Lenovo Vibe Z2 Pro (K920)Samsung W21 5G
Back camera (main camera)16 megapixels(triple camera)
12.2 megapixels
12MP telephoto f/2.452mm1/3.6"1.0Β΅mPDAFOIS2x-optical-zoom
12MP ultrawide f/2.2123Β°12mm1.12Β΅m
Main camera resolution4608x3456 pixels4032x3024 pixels
Video recording (primary)4K UHD (3840x2160) 30 fps4K UHD (3840x2160) 60 fps
FlashDual-LED flashLED flash
Focal aperturefeature not registeredf/1.8 (aperture)
Focal lengthfeature not registered26mm (lens)
Sensor sizefeature not registered1/1.76" inches
Pixel sizefeature not registered1.8Β΅m pixel
AutofocusAutofocusPDAF: phase detection autofocus
Touch focusSupportedSupported
Image stabilizationfeature not registeredOIS: Optical stabilization
ZoomOnly digital zoomDigital and optical zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorSupportedSupported
HDRHDR photo only main cameraHDR photo/video on both cameras
Camera extrasfeature not registeredCover camera: 10MP (f/2.2)
4K@30/60fps
1080p@60fps
1080p@240fps (slow motion)
720p@960fps (slow motion)

πŸ“Έ Front camera

Lenovo Vibe Z2 Pro (K920)Samsung W21 5G
Front camera (secondary)5 megapixels10 megapixels
Front camera resolution2592x1944 pixels3872x2592 pixels
Video recording (secondary)Full HD (1920x1080)4K UHD (3840x2160)
Front flashNot supportedNot supported
Focal aperturefeature not registeredf/2.2 (aperture)
Focal lengthfeature not registered26mm (lens)
Sensor sizefeature not registered1/3" inches
Pixel sizefeature not registered1.22Β΅m pixel

πŸ”‰ Sound and multimedia

Lenovo Vibe Z2 Pro (K920)Samsung W21 5G
LoudspeakerSupportedStereo sound
32-bit/384kHz
Dolby Atmos
Tuned by AKG
Active noise cancellation2 microphones or more2 microphones or more
RadioFMNot supported
TVNot supportedNot supported
Video formatsMP4, H.264, H.263MP4, H.265, H.264, H.263, XviD, MKV
Audio formatsMP3, WAV, WMA, eAAC+MP3, WAV, WMA, eAAC+, FLAC

πŸ”Œ Connectivity

Lenovo Vibe Z2 Pro (K920)Samsung W21 5G
USBMicroUSB 2.0USB 3.2 Type-C, USB OTG On-The-Go
Audio output3.5mm jackType-C reversible connector
TV outputNot supportedUSB Type-C (reversible)
Bluetooth4.0 + A2DP5.0 + A2DP/LE
WiFi802.11 a/b/g/n [wifi4] (2.4GHz, 5GHz)802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO
WiFi Direct, hotspot
DLNANot supportedSupported
GPSA-GPS, GeoTagging, GLONASSA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFCSupportedSupported
Infrared portNot supportedNot supported

🧭 Sensors

Lenovo Vibe Z2 Pro (K920)Samsung W21 5G
SensorsAccelerometer
Ambient light sensor
Compass
Proximity sensor
Accelerometer
Ambient light sensor
ANT+
Barometer
Compass
Face unlock
Fingerprint sensor (side-mounted)
Gyroscope
Hall effect
Proximity sensor
Vibrating alertSupportedSupported

πŸ”‹ Battery

Lenovo Vibe Z2 Pro (K920)Samsung W21 5G
Battery typeLiPo: li-ion polymer (Non removable)LiPo: li-ion polymer (Non removable)
Battery capacity4000 mAh4500 mAh
Charger, wattsWired charging25W Wired fast charging
Reverse charging by cable
USB Power Delivery 3.0
Inductive / wireless chargingfeature not registered11W Qi Wireless charging (Qi/WPC)
4.5W Reverse wireless charging
Talk time autonomy45 hours (1.9 days)31 hours (1.3 days)
Standby940 hours (39.2 days)feature not registered

βž• Other features

Lenovo Vibe Z2 Pro (K920)Samsung W21 5G
Call controlVoice dialing, Voice recorderVoice dialing, Voice recorder, Voice commands
MessagingSMS (T9), MMS, E-mail, Push mailSMS (T9), MMS, E-mail, Push mail
Hands-free callingSupportedSupported
Video callingSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
AntennaInternal antennaInternal antenna
Qwerty physical keyboardNot supportedNot supported
Miscellaneousβ€’ Colors: Black, White, Gold
β€’ WiFi hotspot
β€’ Java framework
β€’ Colors: Gold
β€’ Bixby
β€’ Samsung Wireless DeX
β€’ Samsung Pay (MST, NFC)

☒️ Radiation rate

Lenovo Vibe Z2 Pro (K920)Samsung W21 5G
SAR 1.6W/kg (USA, Mexico, etc.)feature not registeredfeature not registered
SAR 2W/kg (Europe, UK, etc.)feature not registered0.859W/kg (head), 1.453W/kg (body)
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