Silent Wake vs FitSleeps vs HiStrips: comparing silent alarm options
Short answer: all three use wrist vibration, but Silent Wake is a single focused product, while FitSleeps and HiStrips position their alarms within larger accessory or recovery-focused catalogs.
If you're researching silent, vibration-based wake-up devices for heavy sleepers, Silent Wake, FitSleeps, and HiStrips (their "Onyx" alarm) are three of the wrist-worn options you'll come across. Here's a factual comparison based on what each brand publicly states about their product, so you can compare before deciding.
A note on sourcing: figures marked as a brand's own claim (like a stated "wake rate" or user count) come from that company's own marketing and haven't been independently verified by us — we're presenting them as-stated, not vouching for them. Specs and pricing change, so always check each brand's current site before buying.
The basic approach: all three use wrist vibration
Silent Wake: 3 intensity levels, up to 14-day battery, 100-day money-back guarantee, water resistant, multiple alarms supported.
All three products work on the same core principle: a vibration motor worn on the wrist wakes you through touch instead of sound, so the alarm doesn't disturb anyone else nearby. If you want the reasoning behind why this approach works for heavy sleepers in the first place, see Vibration Alarms vs Sound Alarms.
Product focus
- Silent Wake (EIVOI) — a single, focused product: a silent vibration alarm wristband with three graduated intensity levels.
- FitSleeps — sells a "Pro Version" vibration alarm as its flagship, alongside a broader catalog of sleep accessories (white noise machine, sleep mask, nasal strips, blue light glasses, mouth tape).
- HiStrips — sells a vibration alarm ("Onyx") as part of a wider athletic-recovery product line (nasal strips, mouth tape, red light therapy, sleep masks), marketed primarily around breathing and recovery for athletes.
If you want a single-purpose alarm without also being upsold a broader accessory catalog, Silent Wake and FitSleeps' base alarm are the more directly comparable options to each other; HiStrips positions its alarm as one piece of a larger recovery-focused product line.
Battery life (as stated by each brand)
- Silent Wake: up to 14 days per charge, roughly 40 minutes to recharge via USB-C.
- FitSleeps: states up to 14+ days for its standard version and states up to 20 days for its "Pro" version, per their site.
- HiStrips: battery specs for Onyx were not clearly listed on their site at the time of writing — check their current product page directly.
Guarantee and returns
- Silent Wake: 100-day money-back guarantee.
- FitSleeps: states a 100-day trial and a 2-year warranty on their site.
- HiStrips: return/guarantee terms for Onyx specifically weren't itemized separately from their general store policy at the time of writing — check their current policy page.
Price positioning
- Silent Wake: priced as a standalone product; check the current price on our product page, since it's set live and can vary by region or promotion.
- FitSleeps: their Pro version was listed at $84 (stated as 50% off a $168 list price) at the time of writing — promotional pricing changes frequently, so check their current listing.
- HiStrips: Onyx is typically sold as part of bundle offers alongside their other products rather than as a clean standalone price — check their current bundle pricing.
Social proof claims (as stated by each brand)
- FitSleeps states a 4.6/5 rating and "225,000+ users" on their homepage.
- HiStrips features athlete endorsements and press-logo placements (outlets like Forbes and Vogue) on their homepage.
- Silent Wake's real, verified customer reviews are shown directly on our product page — we don't publish claims we can't back with our own review data.
Why we built Silent Wake the way we did
We built Silent Wake to be the simplest version of this idea: one focused product, not an entry point into a wider accessory catalog. No bundle to opt out of, no upsell flow — just a silent, graduated-vibration alarm that does one job well, backed by a straightforward 100-day money-back guarantee so trying it isn't a risk.
If you've read this far because a normal alarm has stopped reliably waking you, that's precisely the problem Silent Wake was designed to solve. See current pricing and try it risk-free →
For more on what to evaluate in any wearable alarm, regardless of brand, see How Wearable Vibration Alarms Work.
Silent Wake spec details above reflect our own product as documented on this site. FitSleeps and HiStrips details reflect what was publicly stated on their respective websites at the time this article was written, and may have since changed — verify current details directly with each brand before purchasing.