Compare Pre-owned Apple Watch Models

44mm or 40mm case size

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Retina display

Up to 1000 nits brightness

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Chip

S8 chip

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-

Siri

Find iPhone

Water resistant ^*

Swimproof

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-

-

-

-

High and low heart rate notifications ^*

Irregular rhythm notification ^*

Cardio fitness notifications

Sleep tracking

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-

Cycle tracking ^*

Emergency SOS ^*

International emergency calling ^*

Fall Detection

Crash Detection ^*

High-g accelerometer

Gyroscope

Compass Backtrack

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-

Redesigned Compass app with waypoints and backtrack

GPS

Always-on altimeter

Available cellular connectivity ^*

International roaming ^*

Supports Family Setup
(GPS + Cellular models) ^*

Connect family members who don't have an iPhone

45mm or 41 mm case size

Edge-to-edge display

Certified IP6X dust resistant ^*

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-

Always-On Retina display

Up to 1000 nits brightness

Nearly 20% more screen area than Apple Watch SE

Chip

S8 chip

-

-

Siri

Find iPhone

Water resistant ^*

Swimproof

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-

-

Blood Oxygen app ^*

ECG app ^*

High and low heart rate notifications ^*

Irregular rhythm notification ^*

Cardio fitness notifications

Sleep tracking

-

Temperature sensing ^*

Cycle tracking with retrospective ovulation estimates ^*

Emergency SOS ^*

International emergency calling ^*

Fall Detection

Crash Detection ^*

High-g accelerometer

Gyroscope

Compass Backtrack

-

-

Redesigned Compass app with waypoints and backtrack

GPS

Always-on altimeter

Available cellular connectivity ^*

International roaming ^*

Supports Family Setup
(GPS + Cellular models) ^*

Connect family members who don't have an iPhone

45mm or 41 mm case size

Edge-to-edge display

Certified IP6X dust resistant ^*

-

-

Always-On Retina display

Up to 2000 nits brightness

Nearly 20% more screen area than Apple Watch SE

Chip

S9 chip

-

Double tap gesture

On-device Siri with health data access

Precision Finding for iPhone

Water resistant ^*

Swimproof

-

-

-

Blood Oxygen app ^*

ECG app ^*

High and low heart rate notifications ^*

Irregular rhythm notification ^*

Cardio fitness notifications

Sleep tracking

Sleep apnea notifications ^*

Temperature sensing ^*

Cycle tracking with retrospective ovulation estimates ^*

Emergency SOS ^*

International emergency calling ^*

Fall Detection

Crash Detection ^*

High-g accelerometer

Gyroscope

Compass Backtrack

-

-

Redesigned Compass app with waypoints and backtrack

GPS

Always-on altimeter

Available cellular connectivity ^*

International roaming ^*

Supports Family Setup
(GPS + Cellular models) ^*

Connect family members who don't have an iPhone

49mm case size

Flat sapphire front crystal with display edge protection

Certified IP6X dust resistant ^*

Tested to MIL-STD 810H ^*

Customizable Action button

Always-On Retina display

Up to 2000 nits brightness

Nearly 27% more screen area than Apple Watch SE

Chip

S8 chip

-

-

Siri

Find iPhone

Water resistant ^*

Swimproof and recreational dive to 40m

EN13319 certification

Depth gauge with water temperature sensor

Oceanic+ app for use as a dive computer (available on App Store) ^*

Blood Oxygen app ^*

ECG app ^*

High and low heart rate notifications ^*

Irregular rhythm notification ^*

Cardio fitness notifications

Sleep tracking

-

Temperature sensing ^*

Cycle tracking with retrospective ovulation estimates ^*

Emergency SOS ^*

International emergency calling ^*

Fall Detection

Crash Detection ^*

High-g accelerometer

Gyroscope

Compass Backtrack

86-decibel Siren to attract attention

Audible up to 600 feet

Redesigned Compass app with waypoints and backtrack

Precision dual-frequency GPS

Always-on altimeter

Available cellular connectivity ^*

International roaming ^*

Supports Family Setup
(GPS + Cellular models) ^*

Connect family members who don't have an iPhone

45mm or 41mm case size

Aluminum, Stainless Steel, or Titanium case

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-

-

Always-On Retina display

Up to 1000 nits brightness

-

Chip

S7 chip

-

-

Siri

Find iPhone

Water resistant 50m ^*

Swimproof

-

-

-

Blood Oxygen app ^*

ECG app ^*

High and low heart rate notifications ^*

Irregular rhythm notification ^*

Low cardio fitness notifications

Sleep tracking

Sleep score

-

Cycle tracking ^*

Emergency SOS ^*

-

International emergency calling ^*

Fall Detection

-

-

-

-

-

Compass

Always-on altimeter

Waypoints, Backtrack, and Elevation view

Satellite connectivity

Available cellular connectivity ^*

International roaming ^*

Support for Apple Watch For Your Kids (GPS + Cellular models)

Connect family members who don’t have an iPhone

46mm or 42 mm case size

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Certified IP6X dust resistant ^*

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-

Wide-angled OLED Always-On Retina display

Up to 2000 nits brightness

Nearly 30% more screen area than Apple Watch SE

Chip

S10 chip

-

Double tap gesture

On-device Siri with health data access

Precision Finding for iPhone

Water resistant ^*

Swimproof

-

-

-

Blood Oxygen app ^*

ECG app ^*

High and low heart rate notifications ^*

Irregular rhythm notification ^*

Cardio fitness notifications

Sleep tracking

Sleep apnea notifications ^*

Temperature sensing ^*

Cycle tracking with retrospective ovulation estimates ^*

Emergency SOS ^*

International emergency calling ^*

Fall Detection

Crash Detection ^*

High-g accelerometer

Gyroscope

Compass Backtrack

-

-

Redesigned Compass app with waypoints and backtrack

GPS

Always-on altimeter

Available cellular connectivity ^*

International roaming ^*

Supports Family Setup
(GPS + Cellular models) ^*

Connect family members who don't have an iPhone

44mm or 40mm case size

Aluminum, Stainless Steel, or Titanium case

-

-

-

Always-On Retina display

Up to 1000 nits brightness

-

Chip

S6 chip

-

-

Siri

Find iPhone

Water resistant 50m ^*

Swimproof

-

-

-

Blood Oxygen app ^*

ECG app ^*

High and low heart rate notifications ^*

Irregular rhythm notification ^*

Low cardio fitness notifications

Sleep tracking

Sleep score

-

Cycle tracking ^*

Emergency SOS ^*

-

International emergency calling ^*

Fall Detection

-

-

-

-

-

Compass

Always-on altimeter

Waypoints, Backtrack, and Elevation view

Satellite connectivity

Available cellular connectivity ^*

International roaming ^*

Support for Apple Watch For Your Kids (GPS + Cellular models)

Connect family members who don’t have an iPhone