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Samsung Galaxy J3 Achieve (SM-J337P) vs Samsung Galaxy S21 Ultra

Side by side comparison between Samsung Galaxy J3 Achieve vs Samsung Galaxy S21 Ultra phones, differences, pros, cons with full specifications. What's the better?

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Compare Samsung Galaxy S21 Ultra XSamsung Galaxy J3 Achieve (SM-J337P)04Points
Samsung Galaxy J3 Achieve (SM-J337P)
5"
IPS

720x1280

8
MP

5mp

2GB
RAM

64bit Octa

2600
mAh

(Removable)

vs
Samsung Galaxy S21 Ultra
6.8"
AMOLED

1440x3200

108
MP

40mp

12GB
RAM

64bit Octa

5000
mAh

(Non removable)

What's the better phone? Samsung Galaxy S21 Ultra

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!

Galaxy J3 Achieve (SM-J337P)4 Advantages Samsung Galaxy J3 Achieve (SM-J337P)vsGalaxy S21 Ultra38 Advantages Samsung Galaxy S21 Ultra
+Until 512GB microSD, microSDXCAdvantage
More external storage for files using memory cards
vsNot supported
+152 grams (5.32 ounces)49%
Lighter
vs227 grams (7.95 ounces)
+3.5mm jackAdvantage
Headsets with 3.5mm Jack size are more common and easy to find in stores
vsType-C reversible connector
+Li-Ion: Lithium-Ion (Removable)Advantage
Removable battery can be replaced easily
vsLiPo: Li-Ion polymer (Non removable)
1.35Ghz 64bit Octa-Corevs+2.9Ghz 64bit Octa-Core125%
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 (9GB available)vs+128GB (104GB available)11 times
More internal storage for applications and files
eMMC 5.1vs+UFS 3.1Advantage
Fastest write and read storage.
9 millimeters (0.35 inches)vs+8.9 millimeters (0.35 inches)1%
Thinner
Plastic body, glass frontvs+Aluminum frame, glass front/backAdvantage
More resistant material
TFT IPS LCDvs+Dynamic AMOLEDAdvantage
Dynamic AMOLED display is brighter and more vivid
720x1280 pixelsvs+1440x3200 pixels4 times
Higher resolution screen
294 PPIvs+516 PPI76%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
5"vs+6.8"36%
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
EIS: Digital stabilizationvs+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
HDR photo only main cameravs+HDR photo/video on both camerasAdvantage
The HDR technology produced photos with more detail in dark areas
f/1.9 (aperture)vs+f/1.8 (aperture)6%
Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(front) 5MPvs+(front) 40MP7 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
Android 8.0 Oreovs+Android 11Advantage
Android 11 is newer and safer
4G LTEvs+5G NRAdvantage
The 5G NR network is newer and faster
(4G LTE) 150 Mbpsvs+(5G NR) 5000 Mbps32 times
Faster for surfing the internet and download files
Not supportedvs+Ambient Light sensorAdvantage
Sensors help you use the device
Not supportedvs+BarometerAdvantage
Sensors help you use the device
Not supportedvs+Fingerprint sensor (under display)Advantage
Sensors help you use the device
Not supportedvs+Face unlockAdvantage
Sensors help you use the device
Not supportedvs+ANT+Advantage
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
1 slot (Single-SIM)
(dedicated slot)
vs+2 slots (Dual-SIM) + e-SIM (Eletronic)Advantage
It's more advantageous to have more than one phone operator in the same device
Not supportedvs+Active noise cancellationAdvantage
Noise-canceling microphone allows better call quality
802.11 b/g/n (2.4Ghz)vs+802.11 a/b/g/n/ac/ax (2.4Ghz, 5Ghz) Wifi6 + MIMOAdvantage
WiFi 802.11 a/b/g/n/ac/ax (2.4Ghz, 5Ghz) Wifi6 + 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.
4.2 + A2DPvs+5.2 + A2DP/LEAdvantage
Bluetooth 5.2 + A2DP/LE is newer and faster
Not supportedvs+NFCAdvantage
NFC allows you to make payments by approach quickly and securely
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

15 Common items in both devices
16 million
LED flash
Autofocus / PDAF: phase detection autofocus on both cameras
Capacitive
Multitouch
Accelerometer
Proximity sensor
+8 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
Physical featuresSamsung Galaxy J3 Achieve (SM-J337P)Samsung Galaxy S21 Ultra
ModelGalaxy J3 Achieve (SM-J337P)Galaxy S21 Ultra
Other model namesGalaxy J3 Achieve 2018 (Sprint, Boost, Virgin) SM-J337PGalaxy S21 Ultra 5G SM-G998B/DS
Country or region availableUSA
USA
(Global, International)
(Global, International)
BrandSamsungSamsung
Release dateMay, 2018January, 2021
Depth9 millimeters (0.35 inches)8.9 millimeters (0.35 inches)
Size (width x height)70.2 x 142.8 millimeters (2.76 x 5.62 in)75.6 x 165.1 millimeters (2.98 x 6.5 in)
Weight152 grams (5.32 ounces)227 grams (7.95 ounces)
Qwerty physical keyboardNot supportedNot supported
AntennaInternal antennaInternal antenna
Build, materialsPlastic body, glass frontAluminum frame, glass front/back
Protection against water and othersNot supportedIP68 certified: dust proof and waterproof over 1.5 meter and 30min
System (OS)Samsung Galaxy J3 Achieve (SM-J337P)Samsung Galaxy S21 Ultra
Operating systemAndroid 8.0 OreoAndroid 11
Firmware updatefeature not registeredfeature not registered
HardwareSamsung Galaxy J3 Achieve (SM-J337P)Samsung Galaxy S21 Ultra
Chipset64bit - Samsung Exynos 7 Octa 7884A (14nm)64bit - Samsung Exynos 2100 (5nm)
CPU processorOcta-Core, 2 processors:
1.35Ghz Dual-Core ARM Cortex-A73
1.35Ghz Hexa-Core ARM Cortex-A53
Octa-Core, 3 processors:
2.9Ghz Single-Core ARM Cortex-X1
2.8Ghz 3-Cores ARM Cortex-A78
2.2Ghz Quad-Core ARM Cortex-A55
GPU graphical controllerARM Mali-G71 MP2ARM Mali-G78 MP14
RAM memory2GB LPDDR312GB LPDDR5
Internal storage16GB (9GB available)
eMMC 5.1
128GB (104GB available)
UFS 3.1
External storageUntil 512GB microSD, microSDXC
(dedicated slot)
Not supported
DisplaySamsung Galaxy J3 Achieve (SM-J337P)Samsung Galaxy S21 Ultra
Display typeTFT IPS LCDDynamic AMOLED
Screen size5" inches6.8" inches
Screen-to-body ratio~68.8% (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)294 PPI516 PPI
Colors16 million16 million
Scratch-resistant glassNot supportedGorilla Glass Victus
Display featuresfeature not registered120Hz, 1500 nits, HDR10+
Mobile networksSamsung Galaxy J3 Achieve (SM-J337P)Samsung Galaxy S21 Ultra
Dual-SIMNot supportedDual-SIM Standby - Call active on one sim card
SIM card1 slot (Single-SIM)
nano-SIM (4FF)
2 slots (Dual-SIM)
nano-SIM (4FF) + e-SIM
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 networkCDMA 800/1900, GSM 850/900/1800/1900CDMA 800/1900, GSM 850/900/1800/1900
Primary 3G networkCDMA2000 1xEV-DO
UMTS 850/1700/1900
CDMA2000 1xEV-DO
TD-SCDMA 1900/2000
UMTS 850/900/1700/1900/2100
Primary 4G networkLTE Cat4 (Bands 2, 3, 4, 5, 7, 12, 14)LTE Cat24 ()
TD-LTE ()
VoLTE
Primary 5G networkNot supportedSA/NSA/Sub6 ()
Primary data networkGPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, LTEGPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, 5G SA/NSA, 5G NR
Secondary 2G networkNot supportedGSM 850/900/1800/1900
Secondary 3G networkNot supportedNot supported
Secondary 4G networkNot supportedNot supported
Secondary data networkNot supportedGPRS, EDGE
CallingSamsung Galaxy J3 Achieve (SM-J337P)Samsung Galaxy S21 Ultra
MessagingSMS (T9), MMS, E-mail, Push mailSMS (T9), MMS, E-mail, Push mail
SpeakerphoneSupportedSupported
Video callingSupportedSupported
Call controlVoice dialing, Voice recorderVoice dialing, Voice recorder, Voice commands
CameraSamsung Galaxy J3 Achieve (SM-J337P)Samsung Galaxy S21 Ultra
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 aperturef/1.9 (aperture)f/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 stabilizationEIS: Digital stabilizationOIS: Optical stabilization
ZoomOnly digital zoomDigital and optical zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorNot supportedSupported
HDRHDR photo only main cameraHDR photo/video on both cameras
2ª cameraSamsung Galaxy J3 Achieve (SM-J337P)Samsung Galaxy S21 Ultra
Front camera (secondary)5 megapixels40 megapixels
Front camera resolution2560x1920 pixels7296x5472 pixels
Video recording (secondary)Full HD (1920x1080)4K UHD (3840x2160)
Front flashNot supportedNot supported
Focal aperturef/2.2 (aperture)f/2.2 (aperture)
Focal lengthfeature not registered26mm lens
Sensor sizefeature not registered1/2.8" inches
Pixel sizefeature not registered0.7µm pixel
MultimediaSamsung Galaxy J3 Achieve (SM-J337P)Samsung Galaxy S21 Ultra
RadioFMFM
TVNot supportedNot supported
Video formatsMP4, H.264, H.263, XviD, MKVMP4, H.265, H.264, H.263, XviD, MKV
Audio formatsMP3, WAV, WMA, eAAC+, FLACMP3, WAV, WMA, eAAC+, FLAC
ConnectivitySamsung Galaxy J3 Achieve (SM-J337P)Samsung Galaxy S21 Ultra
USBMicroUSB 2.0USB 3.2 Type-C, USB OTG On-The-Go
TV outputNot supportedUSB Type-C (reversible)
Audio output3.5mm jackType-C reversible connector
Bluetooth4.2 + A2DP5.2 + A2DP/LE
WiFi802.11 b/g/n (2.4Ghz)802.11 a/b/g/n/ac/ax (2.4Ghz, 5Ghz) Wifi6 + MIMO
DLNANot supportedSupported
NFCNot supportedSupported
GPSA-GPS, GeoTagging, GLONASSA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
Infrared portNot supportedNot supported
Other functionsSamsung Galaxy J3 Achieve (SM-J337P)Samsung Galaxy S21 Ultra
Active noise cancellationNot supportedSupported
Vibrating alertSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
SensorsAccelerometer
Proximity sensor
Compass
Gyroscope
Accelerometer
Proximity sensor
Compass
Ambient Light sensor
Gyroscope
Barometer
Gesture
Hall effect
Face unlock
Fingerprint sensor (under display)
ANT+
Other features- Colors: Black
- WiFi direct, hotspot
- Colors: Phantom Black, Silver, Titanium, Navy, Brown
- One UI 3.1
- Always-on display
- Tuned by AKG
- 32-bit/384kHz audio
- Samsung Pay (Visa, MasterCard)
- Samsung DeX
- Stylus pen support
- WiFi direct, hotspot
Power supplySamsung Galaxy J3 Achieve (SM-J337P)Samsung Galaxy S21 Ultra
BatteryLi-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 autonomy1740 minutes | 29 hours | 1.2 daysfeature not registered
Standby13680 minutes | 228 hours | 9.5 daysfeature not registered
Radiation rateSamsung Galaxy J3 Achieve (SM-J337P)Samsung Galaxy S21 Ultra
SAR 1.6W/kg (USA, Mexico, etc.)1.06W/kg (head) | 1.59W/kg (body)feature not registered
SAR 2W/kg (Europe, UK, etc.)feature not registered0.714W/kg (head) | 1.58W/kg (body)
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