
Nuna
ThingX · AI Assistant · Chatbot
Nuna is a wearable AI emotion tracking pendant that reads your mood through voice and radar, then turns each hour into colors you can revisit in its companion app. Think of it as a mood tracking device that doubles as jewelry.

About Nuna
What Is Nuna
Nuna is a pebble shaped pendant that tracks how you feel rather than how far you ran. A millimeter-wave radar and voice sensing engine sit inside the 17 gram body, and together they pick up on the tone, pace, and energy of your voice along with subtle changes in your breathing and presence. You wear it like jewelry. It never pings you with leaderboards or nagging reminders.
The pitch is a calm one. Instead of telling you that you're stressed and handing out advice, Nuna records emotional moments in color and lets you decide what they mean. Every hour is captured, tagged with what likely shaped it, and stored as a mood card. Over a few days you get a rough baseline, and from there you can spot patterns in your own day.
Here's the catch. Nuna is not a medical device, and it can't diagnose or treat anything. The company is upfront that it's an emotional wellness gadget and a gentle awareness companion, not a therapist. If you're dealing with anxiety or panic, it won't replace professional support.
Getting Started
- Unbox the pendant and charge it on the magnetic pad. A full top up takes about 1.5 hours.
- Download the companion app, open the device scan page, and pair over Bluetooth. Long press the case button if you need pairing mode.
- Wear the pendant against your skin for a day so the app can build your personal mood baseline.
- Check the Mood page each evening to review your color timeline, then try a guided breathing session when you want to settle down.
- Update the firmware from Me, then My Device, then Firmware Version to keep sensing accurate.
Product Information
A quick look at Nuna's pricing, supported platforms, and performance.
Best for
The users, tasks, and scenarios where this tool fits best.
Users
- Working professionals
- Mindfulness beginners
- People who journal
Tasks
- Reviewing your daily mood
- Guided breathing and meditation
- Tracking speaking energy
Scenarios
- High pressure work weeks
- Everyday commuting
- Evening wind-down
Key features
Multimodal Emotion Sensing
Nuna combines voice tone, speech rhythm, and contactless millimeter-wave radar to read how you feel. The radar picks up breathing and heart rate changes without touching you, while the voice engine listens for pace and energy. The result is a running picture of your inner state rather than a single reading.
Color Mood Timeline
The app turns emotions into colors and cards, so an hour of quiet focus looks different from an hour of stress. Each mood card is tied to a moment and to what likely shaped it, which makes the abstract idea of "how was my day" much easier to see.
Auto Journaling
Nuna writes short entries for you based on the moments it captures, which removes the blank page problem that stops most people from journaling. You can read them later and spot the triggers you would have forgotten.
NunaPulse Haptics
A low, breathing vibration runs through the pendant when your mood shifts, and you can press the center to trigger a calming pattern. The signal is private. Only the person wearing it feels it, and there's no screen or speaker to interrupt anyone nearby.
Guided Meditation and Breathing
Three mindfulness themes pair calming audio with the pendant's haptic rhythm, so the vibration keeps pace with your breathing. It's a physical cue that's easier to follow than a voice telling you to relax.
On Device Privacy
All emotional tracking and journaling run on the device and your phone, so raw biosignals and voice never go to a public cloud. The company says it doesn't sell or share your data with third parties, which matters for something you wear all day.
Pros and cons
Pros
- Reads emotion through voice and radar, so it works in situations where a wrist tracker would fail
- On device processing keeps sensitive biosignals off the cloud
- Private vibration feedback means no screen, no speaker, and no interruptions for people around you
- The pebble pendant and IP65 body fit everyday wear instead of looking like a fitness band
Cons
- The 40 hour active battery life means you're recharging every couple of days, and Nuna drops into sleep mode when the battery runs low
- IP65 only handles splashes and dust, so you can't swim or shower with it
- The app defaults to "calm" as a background mood to save battery, so quiet stretches need a closer look in the hourly section
- It can't diagnose or treat anything, so anyone wanting clinical guidance has to look elsewhere
Frequently asked questions
No. Nuna charges a single $299 price and there are no ongoing subscription fees, so you can use every feature after buying the device. You only pay again if you buy extra necklaces or accessories.
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