Pre-launch waitlist open

Track Every Sip
Automatically.

SipCube S1 sits inside any water bottle and silently logs every drink via pressure sensor. No tapping. No logging. Just drink normally.

INCK
8 athletes already on the waitlist
See how it works

Free to join · No credit card · Waitlist gets first access

SipCube S1 inside a water glass
IP68
Fully waterproof
Works with
any bottle you own
75%
of Americans chronically dehydrated
20%
performance drop at 2% dehydration
0
manual logs required with SipCube

How It Works

Three steps. Zero friction.

You focus on the workout. SipCube handles the water.

01

Drop it in

Place the SipCube S1 inside any wide-mouth bottle. It calibrates to your specific container in 30 seconds — whatever bottle you already own.

02

Drink normally

The pressure sensor detects every sip via fluid displacement. No buttons, no tapping, no remembering. It just knows.

03

Hit your goal

Your personalized daily goal — calculated from weight, activity, and local weather — is tracked automatically. Every sip syncs live via Bluetooth.

SipCube S1 in a clear water bottle

The Device

Invisible inside
your bottle.

At just 1.5"×1.5"×1.5", the SipCube sits at the bottom of any bottle with a suction-cup base. You never notice it — until you open the app.

📡
Real-time BLE sync
Each sip appears in the app within 3 seconds. The blue LED pulses as your physical reminder when you haven't drunk in a while.
🎯
Personalized goal engine
Your daily target is built from your weight, activity level, local weather, and altitude — not a generic "8 glasses a day."
🏆
Streak & badge system
Loss aversion is your best coach. A streak you've built feels too valuable to break. Habit science is wired into every notification.

The Charger

Wireless charging.
No cables in your bottle.

Set the SipCube on the dock overnight. Fully waterproof and rechargeable — no ports, no cables threading through your bottle, ever.

🔋
Fully waterproof
IP68 rated. Leave it in your bottle all day, every day — through the dishwasher, gym bag, and everything else.
⚡
Dock included
The white wireless charging dock ships in the box. One cable charges both device and dock.
SipCube S1 with wireless charging dock

How We Compare

The only tracker that
works with your bottle.

Competitors require you to buy their proprietary bottle. SipCube installs in the one you already own — whatever wide-mouth bottle you use today.

Device Tracking method Goal engine Your bottle?
Competitor A (smart bottle tracker) LED reminder + manual Static goal No — proprietary bottle only
Competitor B (smart water bottle) Sensor in bottle Static goal No — proprietary bottle only
SipCube S1 Pressure sensor — automatic Dynamic (weather + altitude) ✓ Any bottle you own

Early Access

Stop Losing Gains
to Dehydration

Join 8 athletes on the waitlist.

⚡ Early access closes when we hit capacity

Free to join · No credit card · Unsubscribe anytime

FAQ

Honest answers

What bottles does SipCube S1 work with? +
Any wide-mouth bottle with an internal diameter of 50mm or more — most popular insulated tumblers and gym water bottles work. The 30-second calibration process teaches SipCube your specific bottle.
Can I use it with hot drinks or carbonated beverages? +
We'll be upfront: carbonated beverages affect pressure sensor accuracy, and liquids above 140°F (60°C) are not suitable. SipCube works best with still water, juices, and most non-carbonated drinks. This is a real limitation — we surface it proactively.
When does SipCube S1 ship? +
We're in the final PCB revision and pre-certification phase. Waitlist members will be notified first and will receive early-access pricing before the public launch.
What's included with SipCube S1? +
The SipCube S1 device, wireless charging dock, USB-C cable, and the SipCube app for iOS and Android. Pricing will be announced at launch — join the waitlist to be notified first.
Does it work on iOS and Android? +
Yes. The SipCube app is built for both iOS and Android. Real-time BLE sync, goal engine, streaks, and badges are available on both platforms at launch.
Is my hydration data private? +
Yes. Your data is stored in your account only and never sold to third parties. Full details at sipcubehydration.com/privacy.

Learn

Sport-specific hydration guides

How much water do runners, cyclists, CrossFit athletes, and office workers actually need? Science-based guides covering sweat rate data, timing, and dehydration warning signs for 21 activities.

Browse All Guides →