Noah Presler · Product Leader · Builder · Father


Helping people live a longer, healthier life – through wearables, and personal projects for the moments that matter.

01 — PM Lead · Fitbit & Pixel Watch at Google


Fitbit devices help real people live longer, healthier lives – with the world’s best AI health coach – the Google Health Coach powered by Gemini. While Pixel Watches also help you stay connected and ahead with Gemini Intelligence and pan-planet connectivity.

What reviewers said

“such a complete package”Android Police · Pixel Watch 5“one of the most polished smartwatches around”Trusted Reviews · Pixel Watch 5“the best Whoop alternative for the rest of us”Tom's Guide · Fitbit Air“the ideal screenless health tracker”CNN Underscored · Fitbit Air“The Best Smartwatch for Android”WIRED · Pixel Watch 4“the best all-round Wear OS smartwatch”Tech Advisor · Pixel Watch 4“Still the best-looking smartwatch.”WIRED · Pixel Watch 3“Still My Favorite Android Watch”CNET · Pixel Watch 3“A fantastic fitness tracker with smartwatch features”Woman & Home · Fitbit Versa 4“this is the one to get”Stuff · Fitbit Versa 4“It is an excellent health and wellness tracker”ZDNET · Fitbit Sense 2
“Long Live The King”SlashGear · Pixel Watch 5“A fantastic watch”Engadget · Pixel Watch 5“Lightest, most comfortable Fitbit yet.”WIRED · Fitbit Air“exactly the type of product Google needs”Android Central · Fitbit Air“my favorite smartwatch for Android”Tom's Guide · Pixel Watch 4“Its repairable design and super fast charging are laudable bonuses.”Engadget · Pixel Watch 4“Our favorite smartwatch”Android Central · Pixel Watch 3“Google's third iteration of the Pixel Watch is a winner”Tom's Guide · Pixel Watch 3“an excellent fitness-focused smartwatch”PCMag · Fitbit Versa 4“an excellent health smartwatch”T3 · Fitbit Sense 2“an advanced fitness-tracking smartwatch, with great battery life”Tom's Guide · Fitbit Sense 2

02 — Things I build


Nights and weekends, I design, build and ship my own products end to end — a baby log, a name finder, a household watchlist, the course scheduler I started in college, and a tracker-comparison lab.

01 / 05iOS · Android · Web · 2026

MiaraOS

The little things, beautifully kept.

A calm, private baby-care log for everyone who cares for your baby. Feeds, sleep, diapers, growth and first foods take a tap, or a sentence to Siri, Claude, ChatGPT or Gemini. Your partner sees it the moment it’s saved.

MiaraOS in dark mode: the diaper sheet with one-tap Wet, Dirty and Mixed buttons and the time filled in, over a running sleep timer

One tap, then back to bed

Diapers take a single tap; bottles, nursing and sleep take a few, with the time already filled in. Or just say “log a 5 oz bottle.”

A MiaraOS household of two parents, a caregiver and a viewer, above a feed of entries showing who logged or edited each one, including a bottle logged via Claude

Everyone in sync at handoff

Invite a partner, grandparent or nanny. The night shift sees what the day shift logged the moment it’s saved, and every entry shows who added or changed it.

MiaraOS Lock Screen live activities for a nap timer and a nursing session

The nap keeps time

Sleep and nursing timers live on the Lock Screen and in the Dynamic Island. Whoever is up can end them from their own phone.

The MiaraOS Today screen in dark mode: time since the last feed, diaper and wake-up, with today's totals beside the typical range for ageThe MiaraOS day timeline in dark mode, laying out a night of sleep, a 3:19 AM bottle and diaper changes hour by hour

Answers at 3 AM

Today shows how long since the last feed, diaper and sleep, beside the typical range for age. The timeline lays out the whole night, hour by hour.

02 / 05Web · iOS · Android · 2026

NameWise

Baby names, picked for you. Chosen together.

An AI naming assistant for expecting couples. It learns your style, roots and must-haves, deals name cards that explain why they fit, and sharpens with every swipe. Match on a first name, then find the middle that flows.

NameWise onboarding: choosing which name styles feel right

It asks before it suggests

A few short questions on style, roots, meaning and popularity, plus the names you already love. Must-haves, like a starting letter, are rules, not hints.

A NameWise name card: Lucía, 96% match, meaning "Light", with a line on why it fits the classic, nature feel you described

Every card makes its case

Each name comes with a match score, its meaning and a line on why it fits you. Love, like, pass or add a note, and the next batch gets sharper.

The NameWise match screen: "It's a match! Lucía. Sam Rivera loved this name too!"The NameWise Name Library: Rowan and Maeve loved, a saved note on Rowan, and the partner who liked each name

Swipe apart, match together

You each swipe privately. When you both love a name, it's a match, and your partner gets a push. Every like lands in your library with notes and matches.

A NameWise middle-name card: Rowan Elena Rivera, 92% match, "Elena flows well between Rowan and Rivera"

Then, the middle name

Lock in a first name and NameWise suggests middles scored on how the full name sounds with your surname. Swipe them the same way, together.

03 / 05Web · iOS · Android · 2026

WeWatch

What to watch, together.

A shared watchlist for two. Each partner picks favorites and describes their taste; Claude blends both into fresh picks every week, says why you'll like each one, and shows where it's streaming.

WeWatch on iPhone: "For you, tonight", curated by AI from your shared taste, with a Silo hero card and a "New, and for you" row of posters

For you, tonight

Each of you picks favorites and writes what you love. Claude blends both into tonight’s picks, each with IMDb and Rotten Tomatoes scores, and one sentence reshuffles the lot when you want something lighter.

The WeWatch Watch List: a ranked list of The Diplomat, Charmed, Coven Academy and Lanterns with IMDb and RT scores and New Season badges; press and hold to reorderWeWatch Coming Soon: new seasons of Love Is Blind, Grey's Anatomy, The Traitors and Nobody Wants This, dated and counted down

One list, in your order

Everything you both want to watch lives in one ranked list, shared across iPhone (SwiftUI with Liquid Glass), Android and the web; press and hold to reorder. Coming Soon puts new seasons of the shows you love on a calendar, so nothing slips past.

WeWatch Watched: 52 titles filtered into Loved, Liked and Meh, with a Loved shelf of posters

Remember what you loved

Rate what you finish as Loved, Liked or Meh. Every rating sharpens the next round of picks, and the shelf becomes a record of everything you’ve watched together.

04 / 05Web · 2015

Semester.ly

Every schedule that fits, built for you.

The course scheduler I co-founded at Johns Hopkins. Pick your classes and it builds every conflict-free schedule, with ratings, reviews and open seats a click away. Open source since 2017, it still plans Hopkins semesters.

A generated Hopkins week in Semester.ly: Linear Algebra, Calculus III, Physics, Data Structures and Intermediate Programming, with dots to flip between schedule options

Every schedule that fits

Add your courses and it builds every conflict-free week. Flip through the options, then lock the sections you can't move.

The Data Structures course card: 4 credits, a four-star average rating, classmates' emoji reactions, prerequisites and past evaluations by term

Know the class first

One click shows the average rating, past evaluations by term, prerequisites and how classmates really felt, in emoji.

Advanced Search filtering by department, area, level and day/time

Search the whole catalog

Filter by department, area, level and time to find the class that fits the hole in your week.

05 / 05Web · 2026

Fitbit Dual-Wear Compare

Two trackers. Know which to trust.

For anyone wearing two or three trackers at once. Connect Fitbit, Strava, Polar or Oura accounts, pick a day, and heart rate, steps, sleep and workouts line up on one timeline, with the disagreements flagged and scored.

Heart-rate card overlaying a full day from two devices: a low overnight trace, a walk, a sharp lunch-run peak and an evening yoga bump, with two red High BPM Error bands, averages of 68 and 69 and a PE10 of 2.36%

Every beat, overlaid

Minute-by-minute heart rate from each device on one chart. Red bands mark where they split, and PE10 scores how often they land more than 10 bpm apart.

Sleep Stages Agreement card stacking two devices' awake, light, deep and REM timelines, with a 70% agreement rate and a 5.3% sleep duration delta

Sleep, stage by stage

Each device’s night stacked as a hypnogram. The agreement rate shows how often both called the same stage; the duration delta is the gap in total sleep.

Activity Summary comparing the same 12:05 lunch run from two devices, with distance, calories, elevation, heart-rate PE10 and cross-track error deltas above overlaid heart-rate traces where the second device is slow to lock on and briefly reads high

Run against run

Pick a workout from each device to see distance, calories, elevation and route error side by side, with heart rate overlaid. Pair a Polar strap and it becomes ground truth.

03 — Contact


© Noah Preslerpresler.me