missing blood oxygen on iphone14

Are those functions approved for the Watch in your country?

watchOS - Feature Availability - Apple

M1 Mac mini, macOS 13.3.1;  Watch, series 7 GPS/cellular, watchOS 9.4; iPad Pro 2nd Gen, iPadOS 16.4.1; iPhone 12 Pro, iOS 16.4.1; TV 4th Gen, tvOS 16.4.1; HomePods, audioOS 16.4.1 and Airport Express w/ Airplay 2

If the apps were available in an earlier version they should also be available in the later versions. That seems to point at something like settings.

Check (again) your iPhone and Apple Watch are both on the latest software. That should be iOS 16.4.1 and WatchOS 9.4.

These two apps need additional setup, and you need to confirm things like your age. Did you follow the extra setup procedures detailed by Apple in:

Take an ECG with the ECG app on Apple Watch - Apple Support

and

How to use the Blood Oxygen app on Apple Watch - Apple Support

OK, so the apps should be installed but it sounds like you can't see the icons on your watch face, to launch the app. Some random suggestions;

In the Watch app in your iPhone, go into My Watch and scroll down into the apps. You're looking for 2 items;

1. Blood Oxygen. Tap on it and make sure Blood Oxygen Measurements is enabled.
2. Heart. Tap on it, and make sure ECG App is shown as "Installed"

If the icons are still missing on your Apple Watch, try launching the apps using Siri to at least find out whether they work. I just tested. "Hey Siri, take ECG" got me a heart trace, and "Hey Siri, check blood oxygen" launched the oxygen app.

If the apps fail to open and are really missing from your watch, go to the App Store from your iPhone's Watch app and try to download again.

OK. Even if you restored the new phone from your old phone backup, you needed to unpair the watch from the old phone and set it up on the new phone.

See this link about hot to move your watch to a new iPhone --> How to pair your Apple Watch with a new iPhone - Apple Support

BrendaW56 wrote:

US. I think it is looking to my old watch. I can’t figure out how to change it to the new one

It will be looking at whichever watch is currently active and paired to your iPhone. Look in the iPhone's Watch App, My Watch, General, About.

Edit: This older support doc might help

Use more than one Apple Watch with your iPhone - Apple Support

Are you within 14 days of original purchase? If you are and you bought Apple Watch SE, yes, they don't have the features you asked about. You can return the watch (it MUST be returned in the original packaging, with ALL accessories) for full refund within 14 days. Then you can buy the Series 8 (which is what you said you bought to begin with) which does offer these features.

What country do you live in?

Have you checked the App Store on your Apple Watch?

You said originally that you bought a Watch 8. That screenshot gives information on a Watch SE. Can you clarify which watch you actually have?

You didn't answer what country you live in?

Is the old watch still paired to your iPhone? I'm not sure it would make a difference, however. You can have more than onw Apple Watch, paired to a single iPhone. You can only use one at a time though.

BrendaW56 wrote:

US. I think it is looking to my old watch. I can’t figure out how to change it to the new one

Where did you buy the watch from? Did you buy it from Apple or an authorized Apple reseller? Or from a third party?

It's unfortunate that resellers, like AT&T are so lacking in knowledge. Often, the person in a carrier store, may have sold sneakers the week before. Apple Store employees are much better trained and knowledgeable about the products they sell.

I am happy however, to see you got the watch that best meets your needs. Enjoy it.