National Digital Mental Health Study

To Determine iPhone Eligibility
  • To participate in this study, you must own and use an iPhone 11 or later, operating iOS 18 or later.
  • To determine which iPhone model that you have, on your iPhone:
    • Open Settings
    • Tap General
    • Tap About
    • Confirm the Model Name is one of the following:
      • iPhone 11
      • iPhone 11 Pro
      • iPhone 11 Pro Max
      • iPhone SE (2nd generation)
      • iPhone 12
      • iPhone 12 Mini
      • iPhone 12 Pro
      • iPhone 12 Pro Max
      • iPhone 13
      • iPhone 13 Mini
      • iPhone 13 Pro
      • iPhone 13 Pro Max
      • iPhone SE (3rd generation)
      • iPhone 14
      • iPhone 14 Plus
      • iPhone 14 Pro
      • iPhone 14 Pro Max
      • iPhone 15
      • iPhone 15 Plus
      • iPhone 15 Pro
      • iPhone 15 Pro Max
      • iPhone 16
      • iPhone 16 Plus
      • iPhone 16 Pro
      • iPhone 16 Pro Max
  • To determine which version of iOS you have on your iPhone:
    • Open Settings
    • Tap General
    • Tap About
    • Confirm the Software Version is 18 or later
To Determine Apple Watch Eligibility
  • To participate in this study using your own watch, you must have an Apple Watch Series 8 or later, operating watchOS 11 or newer.
  • To determine which Apple Watch model that you have, open the Apple Watch app on your iPhone:
    • Tap the My Watch tab
    • Tap General
    • Tap About
    • Tap the Model Number field to see a five-digit number that starts with “A”
    • Compare your model number to the list of Apple Watch models found here
    • If your Apple Watch is included in the following list, you may use it to participate in the study as long as it is updated to watch OS 11 or newer:
      • Apple Watch Series 8
      • Apple Watch Series SE (2nd generation)
      • Apple Watch Ultra
      • Apple Watch Series 9
      • Apple Watch Ultra 2
      • Apple Watch Series 10
  • To determine which version of watchOS you have on your Apple Watch:
    • Open the Apple Watch app on your iPhone
    • Tap the My Watch tab
    • Tap General
    • Tap About
    • Confirm the Software Version is 11 or later

If you have any questions about the research study, you may email us at digitalhealthstudy@mednet.ucla.edu or speak with a Research Coordinator by calling 310-339-9053.

  • Protocol ID: IRB-25-0154 
  • UCLA IRB Approved 
  • Approval Date: 5/14/2025 
  • Committee: Medical IRB 3