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Apple Watch 3 (38mm) vs Apple Watch (Sport 42mm)

Side by side comparison between Apple Watch 3 vs Apple Watch smartwatches, differences, pros, cons with full specifications. What's the better?

Compare Apple Watch XApple Watch 3 (38mm)13Points
Apple Watch 3 (38mm)




32bit Dual


(Non removable)

04PointsApple Watch (Sport 42mm)Compare Apple Watch 3 X
Apple Watch (Sport 42mm)




32bit Single


(Non removable)

What's the better smartwatch? Apple Watch 3 (38mm)

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!

Watch 3 (38mm)13 Advantages Apple Watch 3 (38mm)vsWatch (Sport 42mm)4 Advantages Apple Watch (Sport 42mm)
+1Ghz 32bit Dual-Core120%
More powerful processor, you can open your applications faster
vs520Mhz 32bit Single-Core
+768MB LPDDR450%
More RAM memory. Typically more responsive and better for multitasking.
+16GB (10GB available)67%
More internal storage for applications and files
vs8GB (6GB available)
+42 grams (1.47 ounces)67%
vs70 grams (2.45 ounces)
+Stainless steel body, glass front, ceramic backAdvantage
More resistant material
vsAluminum body, glass front, plastic composite back
+WatchOS 5.0Advantage
WatchOS 5.0 is newer and safer
vsWatchOS 4.0
+4G LTEAdvantage
The 4G LTE network is newer and faster
vsNot supported
+(4G LTE) 150 MbpsAdvantage
Faster for surfing the internet and download files
vs(Not supported)
Sensors help you use the device
vsNot supported
+279 mAh36%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
vs205 mAh
+A-GPS, GeoTagging, GLONASSAdvantage
It's harder to lose yourself in the city with GPS on your device
vsNot supported
+4.2 + A2DPAdvantage
Bluetooth 4.2 + A2DP is newer and faster
vs4.0 + A2DP
+50 meters waterproofAdvantage
Protection against water allows you talk to your friends in the rain, for example
vsIPX7 certified
11.4 millimeters (0.45 inches)vs+10.5 millimeters (0.41 inches)9%
340x272 pixelsvs+312x390 pixels32%
Higher resolution screen
290 PPIvs+324 PPI12%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
Larger screen

17 Common items in both devices
16 million
Not supported
Ambient Light sensor
+10 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 featuresApple Watch 3 (38mm)Apple Watch (Sport 42mm)
ModelWatch 3 (38mm)Watch (Sport 42mm)
Other model namesApple Watch Series 3 GPS + Cellular (4G LTE) Stainless SteelApple Watch 1st gen, Apple Watch A1554 Sport 7000 Series
Country or region available(Global, International)
(Global, International)
(Global, International)
(Global, International)
Release dateSeptember, 2017April, 2015
Depth11.4 millimeters (0.45 inches)10.5 millimeters (0.41 inches)
Size (width x height)33.3 x 38.6 millimeters (1.31 x 1.52 in)35.9 x 42 millimeters (1.41 x 1.65 in)
Weight42 grams (1.47 ounces)70 grams (2.45 ounces)
Qwerty physical keyboardNot supportedNot supported
AntennaInternal antennaNot supported
Build, materialsStainless steel body, glass front, ceramic backAluminum body, glass front, plastic composite back
Protection against water and others50 meters waterproofIPX7 certified: water resistant up to 1 meter and 30min
System (OS)Apple Watch 3 (38mm)Apple Watch (Sport 42mm)
Operating systemWatchOS 4.0WatchOS 1.0
Firmware updateWatchOS 5.0WatchOS 4.0
HardwareApple Watch 3 (38mm)Apple Watch (Sport 42mm)
Chipset32bit - Apple S3 (28nm)32bit - Apple S1 (28nm)
CPU processor1Ghz Dual-Core ARM Cortex-A7520Mhz Single-Core ARM Cortex-A7
GPU graphical controllerPowerVR G6200PowerVR SGX543
Internal storage16GB (10GB available)8GB (6GB available)
External storageNot supportedNot supported
DisplayApple Watch 3 (38mm)Apple Watch (Sport 42mm)
Screen size1.5" inches1.54" inches
Screen-to-body ratio~55.1% (screen-to-body ratio)~49.5% (screen-to-body ratio)
Display resolution340x272 pixels312x390 pixels
TouchscreenCapacitive MultitouchCapacitive Multitouch
Pixel density (dot pitch)290 PPI324 PPI
Colors16 million16 million
Scratch-resistant glassSapphire GlassSapphire Glass
Display featuresfeature not registeredfeature not registered
Mobile networksApple Watch 3 (38mm)Apple Watch (Sport 42mm)
Dual-SIMNot supportedNot supported
SIM card1 slot (Single-SIM)
e-SIM (Eletronic)
Not supported
Maximum download/upload150/50 Mbpsfeature not registered
Network technology2G, 3G, 4Gfeature not registered
Frequency, bandsExpand band detailsCollapse details
GSM Mhz bandQuad-Band 850/900/1800/1900Not supported
Primary 2G networkGSM 850/900/1800/1900Not supported
Primary 3G networkA1889 model (Europe,Australia):
UMTS 800/850/900/2100

A1860 model (USA,LATAM,Canada):
UMTS 800/850/1700/1900

A1890 model (China):
UMTS 2100
Not supported
Primary 4G networkLTE Cat4

A1889 model (Europe,Australia):
LTE (Bands 1,3,5,7,8,18,19,20,26)

A1860 model (USA,LATAM,Canada):
LTE (Bands 2,4,5,12,13,17,18,19,25,26)
TD-LTE (Bands 41)

A1890 model (China):
LTE (Bands 1,3)
TD-LTE (Bands 39,40,41)
Not supported
Primary 5G networkNot supportedNot supported
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTENot supported
Secondary 2G networkNot supportedNot supported
Secondary 3G networkNot supportedNot supported
Secondary 4G networkNot supportedNot supported
Secondary data networkNot supportedNot supported
CallingApple Watch 3 (38mm)Apple Watch (Sport 42mm)
MessagingSMS, E-mailSMS, E-mail
Video callingNot supportedNot supported
Call controlVoice dialingNot supported
CameraApple Watch 3 (38mm)Apple Watch (Sport 42mm)
Back camera (main camera)Not supportedNot supported
Main camera resolutionNot supportedNot supported
Video recording (primary)Not supportedNot supported
FlashNot supportedNot supported
Focal aperturefeature not registeredfeature not registered
Focal lengthfeature not registeredfeature not registered
Sensor sizefeature not registeredfeature not registered
Pixel sizefeature not registeredfeature not registered
AutofocusNot supportedNot supported
Touch focusNot supportedNot supported
Image stabilizationNot supportedNot supported
ZoomNot supportedNot supported
Face/smile detectionNot supportedNot supported
BSI sensorNot supportedNot supported
HDRNot supportedNot supported
2ª cameraApple Watch 3 (38mm)Apple Watch (Sport 42mm)
Front camera (secondary)Not supportedNot supported
Front camera resolutionNot supportedNot supported
Video recording (secondary)Not supportedNot supported
Front flashNot supportedNot supported
Focal aperturefeature not registeredfeature not registered
Focal lengthfeature not registeredfeature not registered
Sensor sizefeature not registeredfeature not registered
Pixel sizefeature not registeredfeature not registered
MultimediaApple Watch 3 (38mm)Apple Watch (Sport 42mm)
RadioNot supportedNot supported
TVNot supportedNot supported
Video formatsMP4, H.264, H.263MP4, H.264, H.263
Audio formatsMP3, WAV, eAAC+, FLACMP3, WAV, eAAC+, FLAC
ConnectivityApple Watch 3 (38mm)Apple Watch (Sport 42mm)
USBNot supportedNot supported
TV outputNot supportedNot supported
Audio outputNot supportedNot supported
Bluetooth4.2 + A2DP4.0 + A2DP
WiFi802.11 b/g/n (2.4Ghz)802.11 b/g/n (2.4Ghz)
DLNANot supportedNot supported
GPSA-GPS, GeoTagging, GLONASSNot supported
Infrared portNot supportedNot supported
Other functionsApple Watch 3 (38mm)Apple Watch (Sport 42mm)
Active noise cancellationNot supportedNot supported
Vibrating alertSupportedSupported
RingtonesPolyphonic and customizedfeature not registered
Web browserNot supportedNot supported
Ambient Light sensor
Heart rate
Ambient Light sensor
Heart rate
Other features- Colors: Silver, Space black
- Sport band or leather bands (Hermès edition)
- 1000 nits screen
- 3D Touch display
- Siri
- Watch colors: Silver, Space gray
- Watch bands: White, Blue, Green, Pink, Black
- Band material: Plastic
- iOS 8.2 or higher compatible
- Digital Crown
- MagSafe charging
Power supplyApple Watch 3 (38mm)Apple Watch (Sport 42mm)
BatteryLi-Ion: Lithium-Ion (Non removable)Li-Ion: Lithium-Ion (Non removable)
Battery capacity279 mAh205 mAh
Charger, watts Standard charging
Magnetic charging (dock)
Standard charging
Magnetic charging (dock)
Talk time autonomy1080 minutes | 18 hours | 0.8 day180 minutes | 3 hours | 0.1 day
Standbyfeature not registered1080 minutes | 18 hours | 0.8 day
Radiation rateApple Watch 3 (38mm)Apple Watch (Sport 42mm)
SAR 1.6W/kg (USA, Mexico, etc.)0.29W/kg (head) | 0.15W/kg (body)feature not registered
SAR 2W/kg (Europe, UK, etc.)feature not registeredfeature not registered

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