boAt Lunar Discovery (2026 Edition) Review: Specs, Strengths and Limits

The boAt Lunar Discovery (2026 Edition) is a budget round-dial smartwatch with Bluetooth calling, Emergency SOS and HR, SpO2 and sleep tracking. Here is what its official specs mean, its limits and who should buy it.

By Gadget Soch·17 Oct 2026·Updated 19 Oct 2026·10 min read

The boAt Lunar Discovery (2026 Edition) is a budget smartwatch with a round 1.39-inch (3.53 cm) HD display, Bluetooth calling, an Emergency SOS shortcut and heart rate, SpO2 and sleep tracking. It makes sense for first-time smartwatch buyers in India who want to take calls and see notifications on the wrist without paying for an AMOLED screen or built-in GPS. The short verdict: a well-equipped basic watch, provided you accept a modest 240 x 240 TFT display, IP67 splash-level protection and health readings that boAt itself calls reference-only.

The Amazon.in link in this article opens the Active Blue colour, listed as the “2026 Edition”. boAt’s product page and the October 2024 launch coverage describe the same core hardware, and boAt has not published a separate spec sheet explaining what changed under the 2026 Edition label, so confirm the colour and edition on the listing before ordering.

This review is based on boAt’s official product and support pages plus published launch reports, all checked on 17 October 2026. It is not based on hands-on testing, and nothing below comes from our own measurements.

Quick verdict

Best for: first-time smartwatch users, students and office-goers who want call handling, reminders and notifications on the wrist
Skip if: you swim regularly, want GPS route tracking without your phone, or care about a sharp AMOLED screen
Key strengths: Bluetooth calling with a dial pad, Emergency SOS on the side button, MapmyIndia-powered turn-by-turn prompts, a functional crown, 700+ sports modes and sync with Apple Health, Google Fit and Strava
Key limitations: 240 x 240 TFT panel, IP67 splash protection only, no built-in GPS, claimed battery falls to about 4 days with calling, health data is not medical-grade

boAt Lunar Discovery key specifications

boAt Lunar Discovery key specs at a glance — boAt Lunar Discovery key specifications, summarised from the table in this review.

Specification	boAt Lunar Discovery (official and launch data)
Display	1.39-inch (3.53 cm) TFT HD, round dial
Resolution	240 x 240 pixels
Controls	Functional crown plus side button
Build	Aluminium alloy middle frame, plastic case bottom, silicone strap
Software and app	Crest+ OS with the boAt Crest app
Phone compatibility	Android 7.0 and above, iOS 14.0 and above
Connectivity	Bluetooth 5.3, Bluetooth calling with built-in mic and speaker
Navigation	Turn-by-turn direction prompts powered by MapmyIndia (uses the phone’s GPS)
Health tracking	Heart rate, SpO2, HRV-based stress, sleep, steps, guided breathing
Sports modes	20 on the watch, 700+ available through the app
Durability	IP67 dust, sweat and splash resistance
Battery	260 mAh
Claimed battery life	Up to 7 days, about 4 days with Bluetooth calling, up to 15 days standby
Charging	Magnetic USB cable, about 2 hours
Safety	Emergency SOS by long-pressing the side button
Colours	Active Black, Active Blue, Brown, Mint Green, Cherry Blossom, Black Metal (linked variant: Active Blue)

Weight, case dimensions and screen brightness are left out because boAt does not publish them on its official pages. Check the current price of the boAt Lunar Discovery (2026 Edition) in Active Blue on Amazon.in.

Design and controls: a compact round dial with a working crown

According to boAt’s support documentation, the Lunar Discovery pairs an aluminium alloy middle frame with a plastic case bottom on a silicone strap. That is typical at this price: the metal frame makes the sides look more premium, while the plastic underside keeps weight down for all-day wear and sleep tracking.

The most practical design detail is the functional crown. On a 1.39-inch round screen, swiping with a finger covers much of the display, so scrolling menus with the crown is easier, particularly with sweaty fingers after a workout. The separate side button handles power and doubles as the SOS trigger, keeping the emergency feature physically distinct from everyday navigation.

boAt sells the Lunar Discovery in six finishes. The Amazon.in link here is the Active Blue model; other colours have their own listings, so do not assume the link covers them.

Display: what a 240 x 240 TFT panel means in practice

The 1.39-inch screen is a TFT LCD with 240 x 240 resolution, roughly 244 pixels per inch according to Smartprix. That is enough for clear time, notification text and workout numbers, but photo-based watch faces will look softer than on the 390 x 450 AMOLED panels some rivals use. An LCD lights the whole panel from behind, so blacks look grey rather than truly dark, and boAt does not list an always-on display mode.

Launch coverage describes the screen as readable in bright sunlight, but boAt does not publish a brightness figure. A wake gesture turns the screen on when you raise your wrist, and the DIY Watch Face Studio in the Crest app lets you build faces from your own photos, alongside four default faces.

Bluetooth calling, notifications and everyday tools

Bluetooth calling is the headline feature. The watch has a built-in microphone and speaker, a dial pad and saved contacts, so you can answer or place a call while your phone stays in a bag. There is no SIM support: the watch acts as a speaker and mic for your phone over Bluetooth 5.3. boAt’s support page puts the Bluetooth range at about 7 to 10 metres, so walking to another room may drop the connection.

Beyond calls, you get notification alerts, quick replies, Do Not Disturb, alarms, timers, weather, live sports scores, reminders, Find My Phone and camera and music controls. The music controls manage whatever is playing on your phone, whether through its speaker or earbuds such as the boAt Airdopes 141 ANC. A QR tray lets you generate, store and scan QR codes you need to show often.

Navigation and SOS: useful, but phone-dependent

boAt says the watch offers turn-by-turn navigation powered by MapmyIndia, with two caveats. boAt’s product page notes the feature needs your phone nearby for GPS, because the watch has no satellite receiver of its own, and the support page clarifies that the watch shows direction arrows rather than a map. That works for a glance while walking or riding, as long as a route is running on the phone.

Emergency SOS is triggered by long-pressing the side button for about five seconds, and boAt says it sends location alerts to contacts you choose in the Crest app. Since the watch relies on the paired phone, set up your emergency contact on day one and keep the phone connected; treat SOS as a convenience, not a replacement for a dedicated safety device.

Health and fitness tracking: good for trends, not for diagnosis

The sensors cover heart rate, SpO2 (blood oxygen), stress estimated from heart rate variability, guided breathing, steps and sleep. Twenty workout modes are on the watch out of the box, and boAt says more than 700 can be pushed from the app. Data syncs with Apple Health, Google Fit and Strava, useful if you already keep your fitness history there.

Health readings are not medical-grade. boAt’s own support page states that SpO2 and heart rate readings are for reference only, that hair, tattoos, skin conditions or a loose fit can affect accuracy, and that sleep shorter than three hours is not recorded. Treat the numbers as rough trends, never as a basis for medical decisions, and see a doctor about any health concern. With no built-in GPS, the watch is also not designed to record outdoor run or cycle routes on its own.

On water: boAt rates the Lunar Discovery IP67 and markets it for dust, sweat and splash resistance. Swimming appears among the activity modes on boAt’s page, but given the splash-focused wording, we would avoid swimming, showering or hot water and check boAt’s warranty terms on water damage first.

Battery life and charging

The watch uses a 260 mAh battery. Launch reports from FoneArena and Gizmochina quote boAt’s claim of up to 7 days per charge, or about 4 days with Bluetooth calling. boAt’s current support page is more conservative: up to 4 days depending on usage and up to 15 days on standby. If you take several calls a day with notifications on, plan to charge every few days rather than weekly.

Charging uses a magnetic USB-A cable, and boAt’s product page puts charge time at about 2 hours. boAt recommends a 5V, 2A adapter; a computer USB port works but charges more slowly. boAt’s box contents list does not mention a wall adapter.

Who should buy it, and who should skip it

Who should buy the boAt Lunar Discovery — Who the boAt Lunar Discovery suits, summarised from this review.

A good fit if you

Want calling, notifications and reminders on your wrist at a budget price
Prefer a round, watch-like dial with a physical crown
Need a simple SOS shortcut and keep your phone with you anyway
Want basic step, sleep and heart rate trends that sync with Google Fit, Apple Health or Strava

Better to skip if you

Swim or want a watch you never need to take off in water
Run or cycle outdoors and want GPS routes without carrying a phone
Want a bright, high-resolution AMOLED screen or always-on display
Need medically reliable SpO2 or heart rate data

Alternatives worth comparing

boAt Lunar Discovery Pro: a close sibling. Smartprix lists the same 1.39-inch, 240 x 240 display, a larger 300 mAh battery, Bluetooth 5.3 calling, IP67 protection and a claimed 7-day battery life. Worth a look if you like this design but want more battery capacity.

Redmi Watch Move: Xiaomi India lists a 1.85-inch AMOLED display at 390 x 450 with 600 nits brightness, a 300 mAh battery rated for up to 14 days of typical use (per Xiaomi’s internal testing), Bluetooth calling, IP68 and 25 g without the strap. On paper it has a sharper screen and longer battery, in a rectangular design.

Fastrack Limitless Glide X: Smartprix lists a 1.78-inch UltraVU HD display, Bluetooth calling, IP68 protection and a claimed 7-day battery life, for buyers who prefer a larger rectangular screen.

What to check before you order

boAt Lunar Discovery buying checklist — What to check before you buy the boAt Lunar Discovery.

Variant: the link below opens the Active Blue, 2026 Edition listing. Check the colour, edition label and seller name before paying.
Phone compatibility: boAt requires Android 7.0 or later or iOS 14.0 or later, plus the boAt Crest app.
Box contents: boAt lists the watch, a magnetic charging cable, a user manual and a warranty card. No wall adapter is listed.
Warranty: boAt’s product page mentions 12 months of standard warranty plus a 3-month extension for products bought on or after 15 April 2025 with a valid serial number, while its FAQ refers to a 1-year warranty. Keep your invoice and check the warranty card.
Service in India: boAt’s support page lists a phone line (022-6918-1920, 9 am to 7 pm, closed Sundays and national holidays) and WhatsApp support.
Fit: a snug strap improves heart rate and SpO2 readings, so make sure it suits your wrist.

See the Active Blue boAt Lunar Discovery (2026 Edition) on Amazon.in and confirm the variant details on the listing.

Frequently asked questions

Does the boAt Lunar Discovery support Bluetooth calling?

Yes. It has a built-in microphone, speaker and dial pad and connects to your phone over Bluetooth 5.3. It does not take a SIM, so calls go through your paired phone.

Does the boAt Lunar Discovery have built-in GPS?

No. Its MapmyIndia-powered navigation uses your phone’s GPS and shows direction arrows rather than a map. Keep the phone nearby for navigation and SOS alerts.

Can I swim with the boAt Lunar Discovery?

boAt rates it IP67 and describes it as dust, sweat and splash resistant. We would not use it for swimming or showers.

Are the heart rate and SpO2 readings accurate?

boAt states that its SpO2 and heart rate readings are for reference only and are not medical-grade. Use them for general trends and consult a doctor for any health concern.

Which app does it use, and does it work with an iPhone?

It uses the boAt Crest app. boAt lists support for Android 7.0 and above and iOS 14.0 and above.

What is different in the 2026 Edition?

boAt has not published a separate spec sheet for the 2026 Edition label. The features in the Amazon title match the original Lunar Discovery launched in October 2024, so check the listing for any changes.

Final word

The boAt Lunar Discovery (2026 Edition) is a sensible pick if you want a round, crown-equipped smartwatch for calls, notifications and basic activity tracking, and you always carry your phone. Its weak spots are the low-resolution TFT screen, splash-level water protection, phone-dependent GPS and indicative-only health data. If those trade-offs suit you, check the current price of the boAt Lunar Discovery (2026 Edition) on Amazon.in.