Is $349 a good price for NextSense Smartbuds?

Only one store, NextSense, lists them new at $349 as of November 4, 2026, so there is no competing price to beat. Expect little discounting until more retailers carry them.

Do Smartbuds work with Android?

No. They require an iPhone 12 or newer running iOS 17 or later.

How do Smartbuds track sleep differently from a watch or ring?

They use six dry EEG contacts sampling at 1,000 Hz to read brainwaves directly, rather than inferring stages from movement. That lets them detect sleep stages in real time and time the sound pulses.

Are they comfortable for side sleepers?

NextSense designs them for all-night wear, and owners report no ear pain sleeping on their side. The box includes three ear tip and wing sizes to get the fit right.

What comes in the box?

The earbuds, a wireless charging case, ear tips and wings in S, M and L, a 400mm USB-C to USB-C cable and a getting started guide.

Do they work as regular earbuds for music and calls?

They have a built-in mic and 6mm drivers, but connectivity is wired and the focus is sleep and focus audio through the NextSense app. Treat them as a sleep and focus device first.

Where is the NextSense Smartbuds cheapest?

At NextSense, for $349.00, as of our latest check.

What do buyers say about the NextSense Smartbuds?

Buyers like: Actually helped with a snoring husband after earplugs and white noise machines failed; Comfortable for side sleepers all night without ear pain; Deep sleep up almost 40% since starting to wear them.

NextSense Smartbuds: lowest price $349.00 at NextSense

What reviewers say

Owner feedback centers on sleep: several say the buds helped a snoring partner after earplugs and white noise machines failed, and one reports deep sleep up almost 40%. Side sleepers call them comfortable through the night, and travelers say they replaced regular earbuds, a sleep mask and a white noise app.

Pros

Comfortable for side sleepers all night without ear pain
Reported deep sleep gains of up to about 40%
Waking up clear-headed instead of foggy
Replaces several sleep products for travel

Cons

iPhone-only requirement limits who can use them
Wired design is a change from regular wireless earbuds

From NextSense

Clinical-grade in-ear EEG sensors read brainwaves in real time
Gentle sound pulses deepen slow-wave (deep) sleep at night
Focus Mode adapts audio to help lock in focus by day
Engineered for all-night wear, including side sleepers
Tracks sleep stages directly with EEG rather than inferring from movement
Focus Mode included free in the NextSense app

Sizes: S, M, L
Materials: Ear tips and wings: conductive silicone with Tecticoat coating; 6 clinical-grade dry-contact surface electrodes with Tecticoat
Fit: Low-profile, smaller than standard wireless earbuds, with soft flexible ear tips and stabilizing wings; three tip and wing sizes (S, M, L) included
Sizing: Three ear tip and wing sizes (S, M, L) are included so you can dial in a secure, pressure-free fit; a reviewer who is a side sleeper says these are the only ear
Care: Clean weekly: use a cloth dampened with bottled water to gently clean the surface, and let everything dry completely before use. Not waterproof: avoid rain, hea
Guarantee: 30-day money-back guarantee (30-night trial) plus a 1-year warranty on all hardware
Returns: Try Smartbuds for 30 days and nights; if they don't improve your sleep or focus, you're covered by the 30-day guarantee
Shipping: Free U.S. shipping; currently on backorder, with orders placed today beginning to ship in early November
In the box: Smartbuds earbuds, Wireless charging case, Ear tips (S, M, L), Wings (S, M, L), 400mm USB-C to USB-C cable, Getting Started Guide

About the NextSense Smartbuds

Smartbuds use clinical-grade EEG sensors to work with your brain while you rest—detecting your sleep stages in real time and delivering gentle sound pulses to deepen your most restorative sleep stage.

Every SmartBuds purchase includes a complete Fit Kit:

All 3 sizes of ear tips and wings included in the box

Find your perfect fit right out of the box

Smartbuds require an iPhone 12 or newer running iOS 17+.

What buyers say

Buyers like

Actually helped with a snoring husband after earplugs and white noise machines failed
Comfortable for side sleepers all night without ear pain
Deep sleep up almost 40% since starting to wear them
Wake up clear-headed instead of foggy
Replaced regular earbuds, sleep mask and white noise app for weekly travel