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[Morgan @morganlinton]

Last night I slept with four different wearables - the new Fitbit Air from Google, the WHOOP MG, Oura Ring v4, and the Apple Watch Ultra 3.

I'm going to be testing all four, side-by-side for the next month to figure out which is the best at sleep tracking.

Sleep tracking is what matters to me the most because I think sleep is the most important thing to prioritize if you want to have a healthy, long, life. It effects everything from cognition to immune defense, mood, etc.

Here's the data from all four, and a few thoughts of mine on each:

Apple Watch Ultra 2 (using AutoSleep) - says that I got 8 hours and 4 minutes of sleep with an 100% sleep rating. While I wish this was true, it's not, I woke up for around half-an-hour at like 3am, the Apple Watch never seems to pick this up.

Google Fitbit Air - shows even more sleep that the Apple Watch but did catch the time I was awake. Shows an hour and twenty three minutes of deep sleep which would be low, I really aim for 2+ hours of deep sleep a night, and I know how I feel when I get less than this.

Oura - shows I got 7 hours and 13 minutes of sleep, which I think is a bit low, but closer than the Apple Watch or FitBit. Where I've found Oura always struggles is getting sleep stages like REM and Deep sleep right. If I only got 58 minutes of REM I'd be a zombie today, but that's not the case, I think it's pretty inaccurate here, and deep is also off probably by about an hour.

WHOOP - the most accurate imo. Shows 7 hours and 23 minutes of sleep which seems spot on, and to be fair, Oura and WHOOP pretty much agreed here. But where WHOOP really excels is at accurately detecting sleep stages, and picking up when I wake up at night. It's showing 2 hours and 36 minutes of deep sleep and 2 hours of REM, which is what my body feels like I got because I feel very rested. It also picked up the time I was awake last night very accurately.

So for day one of the comparison - WHOOP wins on accuracy 🎯

(Note: I got the Fitbit Air three days ago, it needs a week to calibrate, so I am taking these readings with a grain of salt for now)

[ChronoTech Accessories @ChronoTech0n69]

Time is the only resource you can't get back. Make every second count — with tech that's as serious about performance as you are. ChronoTech. ⌚ Link in bio for early access. #ChronoTech #WearableTech #TechForAll

#ChronoTech
#WearableTech
#TechForAll

[ChronoTech Accessories @ChronoTech0n69]

2026 is the year wearables go mainstream — not just for fitness, but for payments, health diagnostics, and ambient computing. ChronoTech is positioned at the center of all of it. Watch this space. 👀 #FutureTech #Wearables
#FutureTech
#Wearables
#AmbientComputing

[ChronoTech Accessories @ChronoTech0n69]

What's your current EDC (everyday carry) tech setup?
🎒 Mine:
📱 Phone
⌚ Smartwatch
🔌 Fast charger
🎧 Wireless earbuds
Drop yours below — always looking for what the community is rocking. #EDC #TechTwitter #Gadgets

[ChronoTech Accessories @ChronoTech0n69]

Week 1 down. The ChronoTech community is growing fast 🚀 Thank you to everyone who's followed, shared, and engaged. We're just getting started. Biggest announcement coming next week. Stay tuned. #ChronoTech #TechStartup

#ChronoTech
#TechStartup

[Yash Manghnani @YashManghnani1]

You’re not one viral tweet away from success.

You’re about 200 boring consistent ones away. sorry.

[Yernar @yernarmerkhanov]

Your prompts are tech debt.

You ship Claude your coding agent never reads, pay for every token of it, and the noise quietly makes the output worse.

Everyone's busy optimizing the model, almost nobody's optimizing what they send it.

So I built Tokenolo — a drop-in CLI for making your agent smarter with less context menu

[@ZAM_Style Diary @ishaq_zunera]

The working woman's modest outfit formula ✨ Structured blazer + wide-leg trousers + minimalist sneakers = effortlessly polished every time. Screenshot this 📸 #WorkWear #ModestStyle

#WorkWear#ModestStyle#OOTD

[@ZAM_Style Diary @ishaq_zunera]

Behind every beautiful collection is hours of research, late nights, sketches, and a whole lot of love 🖊️ The process IS the journey. #StyleByZAM #BuildingABrand

#StyleByZAM#BuildingABrand#SmallBusiness

[@ZAM_Style Diary @ishaq_zunera]

Reminder for today: You can be fully covered AND be the most stylish, magnetic, unforgettable person in the room 👑 Never dim your shine. #ModestFashion #Confidence

#ModestFashion#Confidence#WomenEmpowerment

[@ZAM_Style Diary @ishaq_zunera]

Drop your favourite modest fashion account below 👇 Let's build this community and support each other! Retweet so more sisters find their people 🌸 #ModestCommunity

#ModestCommunity
#ModestFashion
#SupportSmall

[style by ZAM @stylebyZAM]

Trend alert 🌿 Monochromatic modest looks are having a MOMENT — and we are obsessed. One colour, head to toe, in the most elegant way. Would you wear this? #ModestOOTD #StyleByZAM

#ModestOOTD#StyleByZAM#FashionTrend

[style by ZAM @stylebyZAM]

The modest fashion gap in the market is REAL. Finding chic, affordable, quality pieces is a challenge we face every day — and Style by ZAM is the solution 💼 #StyleByZAM #ModestWear

#StyleByZAM#ModestWear#FashionIndustry

[Sam Altman @sama]

big upgrade to chatgpt memory rolling out today!

[Elon Musk @elonmusk]

Starlink V3 satellites have >10X bandwidth of V2 and there’ll be >10X launched, which means >100X more bandwidth.

Also, altitude will be 350km vs 550km, so min latency can be cut in half.

Light travels 300km/ms in space, so physics round trip min latency drops to <5ms.

[David Sacks @DavidSacks]

Signs you might be trying to get your frontier AI lab nationalized:

You compare it to nukes… threaten half of white-collar jobs… warn recursive self-improvement could end humanity… then race ahead anyway.

In other words, you want the government to save us from… you.

[Paul Graham @paulg]

You can remove both the tab search and "Ask Gemini" buttons from the top of your Chrome windows by control-clicking on them and choosing "Unpin". What a relief! Less visual clutter, and more room for tabs.

[Paul Graham @paulg]

There's a startup in the current YC batch that built an MRI machine in 101 days.

[Elon Musk @elonmusk]

Grok model improvement

[Elon Musk @elonmusk]

Grok Build updates