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Smartwatches with a 42 mm or Smaller Case

All smartwatches

8 smartwatches with a 42 mm or smaller case from Garmin, Apple, Samsung and more. Most cost $20 to $59, and half cost less than $30.

All filtersFilters (2)×
Connectivity: Bluetooth calling  ×Case size: Small case (42 mm or less)  ×Clear all
BrandGydom2Iaret2Kuizil1Souyie1Woneligo1
PlatformOther8
ConnectivityGPS29Bluetooth calling8Cellular8
Case sizeSmall case (42 mm or less)8
Screen sizeCompact screen (under 1.4 in)3
Target audienceWomen's4
Bluetooth callingBluetooth calling8
Heart rate monitorHeart rate monitor7
Sleep trackingSleep tracking7
AMOLED displayAMOLED display5
Water ratingIP6843ATM1
PriceUnder $252Under $505Under $756Under $1006Under $1502Under $2001$100 & above1
Clear allShow 8 smartwatches
Connectivity: Bluetooth calling  ×Case size: Small case (42 mm or less)  ×8 resultsSort byRecommendedSpec scorePrice: low to highPrice: high to low
Kuizil

Other, Bluetooth calling, Small case (42 mm or less), IP68

+AMOLED touchscreen display
+Small 40 mm case suits smaller wrists
+Answers and makes calls over Bluetooth
−Calling depends on a paired phone over Bluetooth
$19.99-33%List: $29.99
as of 11/03/2026 23:48 PST - Details
Gydom

Other, Bluetooth calling, Small case (42 mm or less), Women's

+Compact 40 mm case for smaller wrists
+Bluetooth calling lets you answer calls from the watch
+Heart rate monitoring built in
$49.99-29%List: $69.99
as of 11/03/2026 23:18 PST - Details
Gydom

Other, Bluetooth calling, Small case (42 mm or less), 3ATM

+Compact 40 mm case for smaller wrists
+Bluetooth calling lets you answer calls from the watch
+Heart rate monitoring built in
$59.99-14%List: $69.99
as of 11/03/2026 23:18 PST - Details
Souyie

Other, Bluetooth calling, Small case (42 mm or less), Compact screen (under 1.4 in)

+Makes and takes calls over Bluetooth
+Tracks heart rate and sleep
+Small 42 mm or less case for a slim wrist fit
−Small 1.32 inch screen is harder to read at a glance
$149.99
as of 11/04/2026 03:41 PST - Details
Nzjls

Other, Bluetooth calling, Small case (42 mm or less), IP68

+AMOLED display for vivid screen output
+Small 42 mm or less case for a slim wrist fit
+Bluetooth calling from the watch
$9.99
as of 11/04/2026 09:41 PST - Details
Iaret

Other, Bluetooth calling, Small case (42 mm or less), Compact screen (under 1.4 in)

+Compact 42 mm or smaller case for smaller wrists
+Bluetooth calling for answering and making calls
+Heart rate, sleep and SpO2 monitoring included
$29.99
as of 11/03/2026 23:33 PST - Details
Iaret

Other, Bluetooth calling, Small case (42 mm or less), Compact screen (under 1.4 in)

+Compact 42 mm or smaller case for smaller wrists
+Bluetooth calling for answering and making calls
+Over 100 sports modes included
$29.99
as of 11/03/2026 23:33 PST - Details
Woneligo

Other, Bluetooth calling, Small case (42 mm or less), Women's

+AMOLED display for a bright, vivid screen
+Tracks heart rate for daily monitoring
+Tracks sleep for overnight habits
No price recorded yet.

Compare specs

smartwatchPlatformConnectivityCase sizeSpec scorePrice
OtherBluetooth callingSmall case (42 mm or less)n/a$19.99
as of 11/03/2026 23:48 PST - Details
OtherBluetooth callingSmall case (42 mm or less)n/a$49.99
as of 11/03/2026 23:18 PST - Details
OtherBluetooth callingSmall case (42 mm or less)n/a$59.99
as of 11/03/2026 23:18 PST - Details
OtherBluetooth callingSmall case (42 mm or less)n/a$149.99
as of 11/04/2026 03:41 PST - Details
OtherBluetooth callingSmall case (42 mm or less)n/a$9.99
as of 11/04/2026 09:41 PST - Details
OtherBluetooth callingSmall case (42 mm or less)n/a$29.99
as of 11/03/2026 23:33 PST - Details
OtherBluetooth callingSmall case (42 mm or less)n/a$29.99
as of 11/03/2026 23:33 PST - Details
OtherBluetooth callingSmall case (42 mm or less)n/aNo current price

Before you buy

Other Case size options

Fitness Trackers297Wearable Wristbands93Smart Glasses77Fitness Clip Accessories53Binoculars228Network Cables1,382Cameras2,556PC Cases264Chromebooks196CPU Coolers393Processors247Desktops1,531

Popular filters

Smartwatches under $100585Smartwatches with Heart Rate Monitor523Smartwatches under $75522Smartwatches with Sleep Tracking480Smartwatches under $50422Smartwatches with Bluetooth Calling417Smartwatches with Built-in GPS384Smartwatches with a 1.8-Inch or Larger Screen317

Smartwatches by use

Kids Smartwatches with Calling60Rugged GPS Smartwatches86Small Women's Smartwatches51Men's Smartwatches with a Large Screen82Wear OS Smartwatches with LTE21Apple Watches with Cellular18Rugged Garmin Smartwatches29

Related product types

Smartwatches with a 47 mm or Larger Case117Smartwatches with a 43 to 46 mm Case83

Spec scores, pros and cons, and prices are explained in the How it works section of the About page.