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Samsung Z (SM-Z910F) vs Samsung Galaxy S21 Ultra (SM-G998N 256GB)

Side by side comparison between Samsung Z vs Samsung Galaxy S21 Ultra phones, differences, pros, cons and full specifications. What's the better?

,
Samsung Z (SM-Z910F)
4.8"
AMOLED

720x1280

8
MP

2.1mp

2GB
RAM

32bit Quad

2600
mAh

(Removable)

vs
27PointsSamsung Galaxy S21 Ultra (SM-G998N 256GB)Compare Samsung Z X
Samsung Galaxy S21 Ultra (SM-G998N 256GB)
6.8"
AMOLED

1440x3200

108
MP

40mp

12GB
RAM

64bit Octa

5000
mAh

(Non removable)

What's the better phone? Samsung Galaxy S21 Ultra (SM-G998N 256GB)

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!

Z (SM-Z910F)6 Advantages Samsung Z (SM-Z910F)vsGalaxy S21 Ultra (SM-G998N 256GB)27 Advantages Samsung Galaxy S21 Ultra (SM-G998N 256GB)
+Until 64GB microSD, microSDXCAdvantage
More external storage for files using memory cards
vsNot supported
+136 grams (4.76 ounces)67%
Lighter
vs227 grams (7.95 ounces)
+8.5 millimeters (0.33 inches)5%
Thinner
vs8.9 millimeters (0.35 inches)
+Heart rateAdvantage
Sensors help you use the device
vsNot supported
+Li-Ion: Lithium-Ion (Removable)Advantage
Removable battery can be replaced easily
vsLiPo: Li-Ion polymer (Non removable)
+3.5mm jackAdvantage
Headsets with 3.5mm Jack size are more common and easy to find in stores
vsType-C reversible connector
2.3GHz 32bit Quad-Corevs+2.9GHz 64bit Octa-Core61%
More powerful processor, you can open your applications faster
2GB LPDDR3vs+12GB LPDDR55 times
More RAM memory. Typically more responsive and better for multitasking.
16GB (12GB available)vs+256GB (220GB available)17 times
More internal storage for applications and files
720x1280 pixelsvs+1440x3200 pixels4 times
Higher resolution screen
306 PPIvs+516 PPI69%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
4.8"vs+6.8"42%
Larger screen
(back) 8MPvs+(quad camera) 108MP + 10MP + 10MP + 12MP17 times
Higher resolution main camera
Only digital zoomvs+Digital and optical zoomAdvantage
The zoom allows for better focus and approach to take pictures
Not supportedvs+OIS: Optical stabilizationAdvantage
Image stabilization prevents blurry photos and helps in recording motion video
Not supportedvs+BSI sensorAdvantage
The BSI sensor allows the entry of more light generating photos with more detail and brightness
Not supportedvs+HDR photo/video on both camerasAdvantage
The HDR technology produced photos with more detail in dark areas
(front) 2.1MPvs+(front) 40MP18 times
Higher resolution secondary camera to take pictures and selfies
Full HD (1920x1080)vs+8K UHD (7680x4320)15 times
More image quality for recording videos with the primary camera
(front) Full HD (1920x1080)vs+(front) 4K UHD (3840x2160)3 times
More image quality for recording videos with the secondary camera
1500 appsvs+3500000 apps (Google Play Store)2332 times
More apps available to download and use
4G LTEvs+5G SA/NSAAdvantage
The 5G SA/NSA network is newer and faster
(4G LTE) 150 Mbpsvs+(5G SA/NSA) 5000 Mbps32 times
Faster for surfing the internet and download files
Not supportedvs+ANT+Advantage
Sensors help you use the device
Not supportedvs+Face unlockAdvantage
Sensors help you use the device
2600 mAhvs+5000 mAh92%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
802.11 a/b/g/n (2.4Ghz, 5Ghz) + MIMOvs+802.11 a/b/g/n/ac/ax wifi6 (2.4Ghz, 5Ghz) + MIMOAdvantage
WiFi 802.11 a/b/g/n/ac/ax wifi6 (2.4Ghz, 5Ghz) + MIMO 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+5.2 + A2DP/LEAdvantage
Bluetooth 5.2 + 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.
Not supportedvs+Gorilla Glass VictusAdvantage
Protection against scratches on the screen lets you carry your phone with your keys
Not supportedvs+IP68 certifiedAdvantage
Protection against water allows you talk to your friends in the rain, for example

21 Common items in both devices
Super AMOLED / Dynamic AMOLED
16 million
LED flash
Autofocus / PDAF: phase detection autofocus on both cameras
Capacitive
Multitouch
Accelerometer
+14 specs and more in the table below

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

Highlight differencesClear highlight

📱 Model features

Samsung Z (SM-Z910F)Samsung Galaxy S21 Ultra (SM-G998N 256GB)
ModelZ (SM-Z910F)Galaxy S21 Ultra (SM-G998N 256GB)
Other model namesSamsung SM-Z910F, Samsung Redwood갤럭시 S21 Ultra 5G (SM-G998N Single-SIM)
Country or region availableRussia
Russia
South Korea
South Korea
BrandSamsungSamsung
Release date8/1/20141/29/2021, Announced: 1/14/2021
Depth8.5 millimeters (0.33 inches)8.9 millimeters (0.35 inches)
Size (width x height)69.8 x 138.2 millimeters (2.75 x 5.44 in)75.6 x 165.1 millimeters (2.98 x 6.5 in)
Weight136 grams (4.76 ounces)227 grams (7.95 ounces)
Build, materialsfeature not registeredAluminum frame, glass front/back
Protection against water and othersNot supportedIP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant

🤖 Operating System

Samsung Z (SM-Z910F)Samsung Galaxy S21 Ultra (SM-G998N 256GB)
System versionTizen 2.2.1Android 11
Firmware updateTizen 2.3Android 12
User Interfacefeature not registeredOne UI 3.1 / 4.0

⚙️ Processor

Samsung Z (SM-Z910F)Samsung Galaxy S21 Ultra (SM-G998N 256GB)
Chipset32bit - Qualcomm Snapdragon 800 MSM8974AA (28nm)64bit - Samsung Exynos 2100 (5nm)
CPUQuad-Core, 1 processor:
2.3GHz Quad-Core Krait 400
Octa-Core, 3 processors:
2.9GHz Single-Core ARM Cortex-X1
2.8GHz Triple-Core ARM Cortex-A78
2.2GHz Quad-Core ARM Cortex-A55
GPU graphical controllerQualcomm Adreno 330ARM Mali-G78 MP14 (854MHz)
Performance (benchmark)feature not registeredAnTuTu: 657150 (v8), 727634 (v9)
Geekbench: 3457 (v5.2)
GFXBench: 51fps (ES 3.1 onscreen)

💽 Memory and storage

Samsung Z (SM-Z910F)Samsung Galaxy S21 Ultra (SM-G998N 256GB)
RAM memory2GB LPDDR312GB LPDDR5
Internal storage16GB (12GB available)256GB (220GB available)
UFS 3.1
External storageUntil 64GB microSD, microSDXC
(dedicated slot)
Not supported

📲 Display

Samsung Z (SM-Z910F)Samsung Galaxy S21 Ultra (SM-G998N 256GB)
Display typeSuper AMOLEDDynamic AMOLED
Screen size4.8" inches6.8" inches
Screen-to-body ratio~65.8% (screen-to-body ratio)~89.4% (screen-to-body ratio)
Display resolution720x1280 pixels1440x3200 pixels (20:9)
TouchscreenCapacitive MultitouchCapacitive Multitouch 10-points
Pixel density (dot pitch)306 PPI516 PPI
Colors16 million16 million
Scratch-resistant glassNot supportedGorilla Glass Victus
Refresh ratefeature not registered120Hz
Display featuresfeature not registered1500nits[peak]
HDR10+
Always-On Display

📶 Mobile networks

Samsung Z (SM-Z910F)Samsung Galaxy S21 Ultra (SM-G998N 256GB)
Dual-SIMNot supportedNot supported
SIM card1 slot (Single-SIM)
micro-SIM (3FF)
1 slot (Single-SIM)
nano-SIM (4FF)
Maximum download/upload150/50 Mbps5000/1920 Mbps
Network technology2G, 3G, 4G2G, 3G, 4G, 5G
Frequency, bandsExpand band detailsCollapse 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 850/900/1900/2100UMTS 850/900/1700/1900/2100
Primary 4G networkLTE Cat4 800/850/900/1800/2100/2600 (Bands 1,3,5,7,8,20)LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 66)
TD-LTE (38, 39, 40, 41)
VoLTE
Primary 5G networkNot supportedSA/NSA/Sub6 (77, 78)
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTEGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, 5G SA/NSA
Secondary 2G networkNot supportedNot supported
Secondary 3G networkNot supportedNot supported
Secondary 4G networkNot supportedNot supported
Secondary data networkNot supportedNot supported

📷 Camera

Samsung Z (SM-Z910F)Samsung Galaxy S21 Ultra (SM-G998N 256GB)
Back camera (main camera)8 megapixels(quad camera)
108 megapixels
10MP periscope telephotof/4.9240mm1/3.24"1.22µmPDAFOIS10x-optical-zoom
10MP telephotof/2.470mm1/3.24"1.22µmPDAFOIS3x-optical-zoom
12MP ultrawidef/2.213mm1/2.55"1.4µmPDAFSuper-Steady-video
Main camera resolution3264x2448 pixels12000x9000 pixels
Video recording (primary)Full HD (1920x1080) 30 fps8K UHD (7680x4320) 24 fps
FlashLED flashLED flash
Focal aperturefeature not registeredf/1.8 (aperture)
Focal lengthfeature not registered26mm lens
Sensor sizefeature not registered1/1.33" inches
Pixel sizefeature not registered1.8µm pixel
AutofocusAutofocusPDAF: phase detection autofocus on both cameras
Touch focusSupportedSupported
Image stabilizationNot supportedOIS: Optical stabilization
ZoomOnly digital zoomDigital and optical zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorNot supportedSupported
HDRNot supportedHDR photo/video on both cameras
Camera extrasfeature not registered4K@60fps
1080p@240fps
720p@960fps

📸 Front camera

Samsung Z (SM-Z910F)Samsung Galaxy S21 Ultra (SM-G998N 256GB)
Front camera (secondary)2.1 megapixels40 megapixels
Front camera resolution1920x1080 pixels7296x5472 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 registered1/2.8" inches
Pixel sizefeature not registered0.7µm pixel

🔉 Sound and multimedia

Samsung Z (SM-Z910F)Samsung Galaxy S21 Ultra (SM-G998N 256GB)
LoudspeakerSupportedStereo sound
32-bit/384kHz
Dolby Atmos
Tuned by AKG
Active noise cancellation2 microphones or more2 microphones or more
RadioFMFM
TVNot supportedNot supported
Video formatsMP4, H.264, H.263, WMVMP4, H.265, H.264, H.263, XviD, MKV
Audio formatsMP3, WAV, WMA, eAAC+, FLACMP3, WAV, WMA, eAAC+, FLAC

🔌 Connectivity

Samsung Z (SM-Z910F)Samsung Galaxy S21 Ultra (SM-G998N 256GB)
USBMicroUSB 2.0USB 3.2 Type-C, USB OTG On-The-Go
Audio output3.5mm jackType-C reversible connector
TV outputMicro-B USB MHLUSB Type-C (reversible)
Bluetooth4.0 + A2DP5.2 + A2DP/LE
WiFi802.11 a/b/g/n (2.4Ghz, 5Ghz) + MIMO802.11 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 portSupportedNot supported

🧭 Sensors

Samsung Z (SM-Z910F)Samsung Galaxy S21 Ultra (SM-G998N 256GB)
SensorsAccelerometer
Ambient Light sensor
Barometer
Compass
Fingerprint sensor
Gyroscope
Hall effect
Heart rate
Proximity sensor
Accelerometer
Ambient Light sensor
ANT+
Barometer
Compass
Face unlock
Fingerprint sensor (under display)
Gesture
Gyroscope
Hall effect
Proximity sensor
Vibrating alertSupportedSupported

🔋 Battery

Samsung Z (SM-Z910F)Samsung Galaxy S21 Ultra (SM-G998N 256GB)
Battery typeLi-Ion: Lithium-Ion (Removable)LiPo: Li-Ion polymer (Non removable)
Battery capacity2600 mAh5000 mAh
Charger, watts Standard charging25W Fast battery charging
15W Qi wireless charging (Qi/PMA)
4.5W Reverse wireless charging between devices
USB Power Delivery 3.0
Talk time autonomyfeature not registeredfeature not registered
Standbyfeature not registeredfeature not registered

➕ Other features

Samsung Z (SM-Z910F)Samsung Galaxy S21 Ultra (SM-G998N 256GB)
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
Miscellaneous- Colors: Black, Brown
- WiFi hotspot
- Java framework
- Colors: Phantom Black, Silver, Titanium, Navy, Brown
- Samsung Pay (Visa, MasterCard)
- Samsung DeX
- Stylus pen support

☢️ Radiation rate

Samsung Z (SM-Z910F)Samsung Galaxy S21 Ultra (SM-G998N 256GB)
SAR 1.6W/kg (USA, Mexico, etc.)0.96W/kg (head), 1.33W/kg (body)0.489W/kg (head), 1.1W/kg (body)
SAR 2W/kg (Europe, UK, etc.)0.734W/kg (head), 0.304W/kg (body)feature not registered
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