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The Oceanic+ app comes to Apple Watch Ultra

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Re: The Oceanic+ app comes to Apple Watch Ultra

#181

Post by TreeRingCounter »

nradov wrote: post #163
TreeRingCounter wrote: post #114

Earlier quoted context omitted.

For those curious, 40m is a standard cutoff for rec diving because A) oxygen partial pressure with compressed air reaches 1.05atm, with 1.2-1.4atm posing a serious risk of oxygen-induced seizures (extremely dangerous) B) nitrogen partial pressure becomes high enough that it becomes narcotic (every gas gets you high at enough pressure, even noble gasses).

There is virtually zero risk of an oxygen toxicity seizure in the 1.2 - 1.4 atm range. I don't think there has ever been a confirmed case of a sport diver toxing at that level. We normally target about 1.2 atm for the working phase of the dive (reduce slightly for long exposures) and 1.6 for deco (with back gas breaks for long oxygen stops). Narcosis is an issue with nitrogen and oxygen (as well as most other gasses)…

No post body was provided.

Re: The Oceanic+ app comes to Apple Watch Ultra

#182

Post by Godel_unicode »

izacus wrote: post #120
Godel_unicode wrote: post #90

Earlier quoted context omitted.

Depends where you dive, I see a lot of shearwaters in US and I don’t think they make more than one that cheap. All this “trusting your life” stuff is pretty overblown for rec diving. You have a buddy who has a computer and probably a dive guide, you’re not going that deep, worst case scenario if it fails on a dive just swim a bit shallower than the guide (after signaling them) and sit out the next one. Or dive tables…

Yeah, but most people don't use Shearwaters, they use cheaper Mares pucks or other such devices. Although, Apple Watch Ultra will be very competitive against devices like Garmin Descent or Suunto D5.

You must dive different places than I do, I never see pucks except as rentals. I was recently on a trip where people had to figure out whose tank sensor was whose because there were so many.

Re: The Oceanic+ app comes to Apple Watch Ultra

#183

Post by scrumper »

nradov wrote: post #143
scrumper wrote: post #12

Haptics you can feel through a 7mm wetsuit? I'm impressed by that, although I'd not want them turned up that high on my bare wrist! This seems like a winner for vacation diving. For those divers that manage a couple dives a year on the family trip to the Caribbean, you have a device you know extremely well from daily life and that you know you keep charged, rather than a standalone computer you kinda forgot to get se…

I have Garmin's competing product the Descent Mk2 and can feel the haptic alerts through a drysuit. Those alerts are probably helpful for less experienced divers but I disabled them (silent diving mode) to reduce distractions. Optical wrist heart rate sensors can't read through an exposure suit. Garmin has chest heart rate monitor straps which can record heart rate during a dive (within depth limits) and then upload…

> Optical wrist heart rate sensors can't read through an exposure suit.

I didn't think of that! Dense of me. But heart rate monitoring isn't a primary reason to buy this anyway.

Re: The Oceanic+ app comes to Apple Watch Ultra

#184

Post by heavenlyblue »

tyho wrote: post #96

I don't think this will be a useful dive computer for most people. When I first heard the Apple Watch would work as a dive computer I was very excited, but having spent some time thinking about it, and having done 20 dives since the watch was announced, I have changed my mind. The first problem is battery life. I didn't have to replace the battery on my computer for the 20 dives over a week I did recently. If I had g…

Are you spending 80% of your apple watch battery underwater?

Re: The Oceanic+ app comes to Apple Watch Ultra

#185

Post by dang »

andreysolsty wrote: post #91
tiffanyh wrote: post #61

@dang The title should be renamed "Available today, the Oceanic+ app on Apple Watch Ultra" Because the current title of " Apple Introduces Oceanic+" implies this is a 1st party app from Apple, which it is not.

Why change from one made up title to another when we could just use the _actual_ title: “Reach new depths with the Oceanic+ app and Apple Watch Ultra”

We usually change corporate press release titles because they're usually misleading, linkbaity, or both.

https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu...

Re: The Oceanic+ app comes to Apple Watch Ultra

#186

Post by dang »

tiffanyh wrote: post #61

@dang The title should be renamed "Available today, the Oceanic+ app on Apple Watch Ultra" Because the current title of " Apple Introduces Oceanic+" implies this is a 1st party app from Apple, which it is not.

Thanks, I've changed it now. It still sounds too pressreleasey but not too bad.

Re: The Oceanic+ app comes to Apple Watch Ultra

#187

Post by ChrisMarshallNY »

ChrisMarshallNY wrote: post #7

That is cool. I assume that it has been tested and certified. Dive computers are critical safety gear. You really don't want them crashing on you.

I was reading the description of the app, and they were talking about using it for “dive planning,” and “post-dive analysis.” This is despite the fact that it has a lot of in-dive stuff.

I suspect that they are keeping their legal derrière covered. A lot of folks will probably use them as “in-dive” computers, like a Mares or Suunto unit, but that will probably be considered an “unsupported use case.”

Re: The Oceanic+ app comes to Apple Watch Ultra

#188

Post by KennyBlanken »

jupp0r wrote: post #169
threeseed wrote: post #88

Earlier quoted context omitted.

I just spent a month in Thailand diving around the sites near to BKK e.g. Koh Chang with the Apple Watch and used it as my only underwater computer. I had a proper dive computer on the boat to help with planning. a) You never trust your life to any single device and there are always backup plans if something fails. And at recreational depths you're not going to do severe damage if your watch fails and you lose no dec…

> I've had Apple Watches since the original one and reliability has always been excellent. I've had numerous activity tracking apps crash on me randomly, I think because they have been running out of memory on my Apple Watch 3. Strava was one of them. I stopped using it for this purpose after I lost a few tracks.

With such an old device my guess would be that the battery's internal resistance is high enough that the watch is browning out.

Either that or the watch is throttling to prevent browning out, and the app crashes as a result of loops / event handling not happening fast enough and stuff 'piling up.'

Re: The Oceanic+ app comes to Apple Watch Ultra

#189

Post by nixpulvis »

scrumper wrote: post #12

Haptics you can feel through a 7mm wetsuit? I'm impressed by that, although I'd not want them turned up that high on my bare wrist! This seems like a winner for vacation diving. For those divers that manage a couple dives a year on the family trip to the Caribbean, you have a device you know extremely well from daily life and that you know you keep charged, rather than a standalone computer you kinda forgot to get se…

How many watches do divers wear?

Re: The Oceanic+ app comes to Apple Watch Ultra

#190

Post by dag11 »

maratc wrote: post #152

I have more than 500 dives under my weight belt, and I have a (regular) Apple watch, but I'm skeptical. First, there's no mention of Nitrox anywhere (except in a screenshot). Most of the serious folks use this mix (basically, air enriched with some more oxygen) for their dives, it's unclear if — or to what extent — this supports Nitrox. Second, there's no mention of the decompression algorithm they use. Buhlmann, Suu…

Oceanic+ uses Bühlmann[0], and even lets you adjust your gradient factors! That last bit surprised me.

[0] https://www.oceanicworldwide.com/oceanic-plus-in-depth/#:~:t...

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