Bluetooth Call Fitness Voice Assist Watch
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Your phone is buried. The call still gets answered.
Phone is in your jacket pocket under a hi-vis, gloves are on, and the machine is running. You feel nothing and you hear nothing. By the time you have peeled a glove off and dug the thing out, it has gone to voicemail and whoever rang has moved on without you.
This watch puts the call on your wrist. It has its own speaker and microphone, so you actually answer and talk from the watch — it is not just buzzing to tell you the phone is ringing somewhere else. Contacts, the keypad and the call log sync across from the phone, so you can dial out from it too.
The rest of it is fitness tracking. Steps, distance, calories, 110+ sports modes, heart rate, blood oxygen and sleep, all logged to the phone app. Handy for seeing whether you actually moved this week. They are fitness readings, not medical instruments, and the Limits tab spells out exactly what this watch is not.
It is a big lump of a watch — 57 mm tall, 43.5 mm across and 13.8 mm thick, with a polycarbonate, glass fibre and zinc alloy frame. On a slim wrist it will look and feel like what it is.
What It Does
- Answers calls on the wrist: a built-in speaker and microphone, so you take the call from the watch rather than reaching for the phone.
- Dials out as well: synced contacts, an on-screen keypad and call history, all driven over Bluetooth from your paired phone.
- Pushes your notifications: incoming call alerts, SMS and app messages appear on the screen so you can triage without stopping.
- Wakes your phone assistant: the side button calls up whichever voice assistant already lives on your phone.
- Tracks the session: 110+ selectable sports modes recording duration, steps, calories and heart rate.
- Logs fitness readings: optical heart rate, blood oxygen and sleep, held in the companion app so you can see a trend rather than one number.
- Runs the small stuff: weather forecast, alarms, stopwatch, timer, music controls, a sit-still reminder and a breathing timer.
Key Features
- 1.85 inch IPS screen: 240 × 280 pixels, full touch, with a rotary crown for scrolling as well as taps.
- Case construction: polycarbonate and glass fibre with a zinc alloy frame, plus a raised guard bridge over the vent holes to keep grit out.
- 400 mAh battery: charged by a two-pin magnetic puck, so there is no port flap to wear out or leave open.
- IP68 rated: a dust and water ingress rating — read the Limits tab before you go near a pool with it.
- Silicone strap: 205 mm of band on a 22 mm fitting, removable, with a standard buckle.
- Three colourways: black, green and khaki, all with the same dark grey case.
- Broad phone support: Android 4.4 and later, iOS 8.0 and later, over BLE 4.0 / 5.0.
- Changeable watch faces: a set on the watch plus more from the app, including custom faces built from your own photo.
- Weighs about 50 g: light for the size, because the bulk of the case is moulded rather than solid metal.
Limits
It is not a medical device, and the blood pressure reading is the part to ignore.
The supplier's own artwork advertises blood pressure, and there is a "Bp" item in the watch menu that will show you something like 109/80 mmHg. Do not rely on it. This is a single optical sensor shining a light at your wrist. It is not a cuff, it is not calibrated against one, and no clinical validation has been published for it. The same goes for the blood oxygen and heart rate figures — they are fitness indications for spotting a trend, nothing more.
This watch will not diagnose, monitor, treat, cure or manage high blood pressure, sleep apnoea, heart conditions, diabetes or any other medical condition, and we are not going to pretend otherwise. If you have a reason to track any of those, see a doctor and use a device meant for the job. Never make a decision about medication or treatment based on what a wrist tracker tells you.
There is no GPS in it.
The spec sheet lists no GNSS receiver, and independent listings of this model confirm it. Distance and pace come from the step counter, or from your phone's GPS when the phone is with you and the app is running. Leave the phone behind and the route map goes with it. If you want a watch that records a track on its own, this is not that watch.
IP68 is not permission to swim in it.
IP68 is an ingress rating tested in still, fresh water at the maker's stated conditions. It is not an ATM depth rating, and no ATM figure is published for this watch anywhere. The supplier's artwork calls it "swimming-grade waterproof" and prints a photograph of a scuba diver next to it. We are not repeating either claim. The reference spec sheet for this model is marked "not suitable for swimming" despite carrying the same IP68 number, and the watch has an open speaker grille, a microphone port and vent holes in the caseback.
Treat it as splash, sweat and rain resistant. Do not swim in it, do not dive with it, do not wear it in the shower or a hot tub, and do not press the buttons or turn the crown while it is wet — that is how water gets past a seal. Salt water should be rinsed off with fresh and dried.
The battery figures are unproven.
The battery is genuinely 400 mAh. What it delivers is another matter: the artwork claims 30 days standby and 7 days of use, while other sellers of the same model claim 3 to 5 days of use and 7 days standby. Nobody publishes the test conditions behind any of those numbers. Take calls on it, leave heart rate running around the clock and keep the screen bright and you will be charging it far more often than the box suggests.
No military testing, and no certificate sighted.
The supplier's images carry the words "military quality" and "military regulations certification". No test report was supplied with this product and no MIL-STD-810 marking appears on the watch, so BushLine does not make that claim and neither should you. Small CE and RoHS marks are moulded into the caseback, but no certificate has been sighted for either. It is a tough-looking consumer watch, not certified equipment.
A few other things it will not do.
- No SIM card: it is not a standalone phone. Out of Bluetooth range of your handset, calling and notifications stop.
- No onboard assistant: the button wakes your phone's assistant. The watch is a microphone and a speaker, not the brains.
- No reply from the watch: you can read a message on it, but there is no keyboard to answer with.
- No third-party apps: the feature set is what ships on it. It does not run an outside app store.
Q & A
Can people actually hear me when I answer a call on it?
Yes — there is a real microphone and a real speaker in the case, which is what separates this from a watch that only mirrors notifications. It behaves like a small speakerphone, so it works best held reasonably close in a quiet spot. Next to a running machine or in a windy ute tray, expect the person on the other end to struggle.
Will it fit a smaller wrist?
It is a large watch. The case is 57 mm top to bottom, 43.5 mm across and 13.8 mm thick, and the strap gives you 205 mm of band to work with, so the fit range is fine. Whether it looks right is a different question — on a slim wrist the case overhangs.
Can I wear it in the rain, or washing down the ute?
Rain, sweat, splashes and a hose-down are what an IP68 rating is for. Swimming, diving and showering are not — see the Limits tab, where that is set out properly. Rinse salt water off with fresh water and dry it.
Does it track my run without my phone?
It will count steps, time and heart rate on its own, and store them until the phone reconnects. It will not draw a map or give you a true satellite distance, because there is no GNSS receiver in it. Distance without the phone is estimated from your stride.
What phone do I need?
Android 4.4 or later, or iOS 8.0 or later, with Bluetooth. Seller listings for this model name the DA FIT app, though the app name is not printed on the supplier's spec panel — the pairing instructions in the box are the ones to follow.
How long does delivery take?
Allow 10 to 14 days from the day you order, and up to 3 weeks to be safe. Regional and remote addresses take longer again. Delivery is free to Australia and New Zealand.
Specs
| Specification | Detail |
|---|---|
| Model | MK66 |
| Colours | Black, green, khaki |
| Case size | 57 × 43.5 × 13.8 mm |
| Overall length | 265 mm, strap fitted |
| Strap length | 205 mm |
| Strap width | 22 mm |
| Strap material | Silicone |
| Case material | Polycarbonate and glass fibre with a zinc alloy frame |
| Weight | Approximately 50 g (seller-stated; not on the supplier's spec panel) |
| Screen | 1.85 inch IPS touchscreen, 240 × 280 pixels |
| Screen brightness | Not specified by supplier |
| Processor | Realtek 8763EW |
| Memory | 128 MB flash |
| Battery | 400 mAh |
| Claimed battery life | Supplier artwork claims 30 days standby and 7 days use; other sellers of this model claim 3–5 days use. No test conditions published by any of them |
| Charging | Two-pin magnetic contacts; around 2 hours stated |
| Connectivity | Bluetooth BLE 4.0 / 5.0 |
| Satellite positioning | None. No GNSS receiver fitted |
| Calling | Built-in speaker and microphone, over Bluetooth from a paired phone |
| Sensors | PPG optical sensor (heart rate, blood oxygen), motion sensor |
| Sports modes | 110+ |
| Ingress rating | IP68 (dust and water ingress). Not an immersion or depth rating |
| Water depth rating | None published. No ATM figure stated by the supplier |
| Operating temperature | Not specified by supplier |
| Speaker output | Not specified by supplier |
| Certification | CE and RoHS marks moulded into the caseback. No certificate sighted |
| Compatibility | Android 4.4 and later, iOS 8.0 and later |
| In the box | Watch, magnetic charging cable. Not otherwise specified by supplier |
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