CITIZEN Bluetooth Watch vs Montblanc Summit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CITIZEN Bluetooth Watch
This app connects your smartphone to compatible Bluetooth watches, offering automatic time synchronization, world time settings, and notifications for calls and messages. It also features alarm setting, a light level indicator for the watch's power, and tools to locate your smartphone or alert you if the connection is lost.
- Automatic time synchronization
- World time settings
- Call and message notifications
- Alarm setting
- Light level indicator
- Smartphone search function
- Link loss alert
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*Important Notice Thank you for using Citizen products. As of 12/31/2027, we will no longer provide service for dedicated apps for some models and functions used in conjunction with the apps. For details, see this link. https://www.citizenwatch-global.com/support/im/smartwatch.html Overview This is the official app for linking your smartphone with CITIZEN Bluetooth watches (Bluetooth® version 4.0 or later). The app, which works with iPhone, enables you to set the time and the alarm for your watch, and to receive alerts for incoming calls, mails and texts. With CITIZEN Bluetooth Watch, you get to enjoy a handsome-looking analogue watch that tells the accurate time wherever you are plus the great convenience of a smartphone link. CITIZEN Bluetooth features CITIZEN’s proprietary light-powered technology Eco-Drive. Eco-Drive eliminates the need of periodic replacement of batteries or recharge via cable. Features 1. Time Sync Get the right time, all the time. When you connect with your smartphone, the time on your watch automatically updates to the current time (home time). 2. Local Time Get the time in any city around the world. Just touch the world map inside the app to set your watch to the time there (local time). 3. Call Notification Find out when you get a call. The watch emits a sound, vibrates or rotates the hands to let you know when you get a call. A filter function enables you to specify which callers will trigger alerts. 4. Message Notification Find out when you get a mail, text or SNS notification. The watch emits a sound, vibrates or rotates the hands to let you know when a new e-mail or SNS notification has arrived. You can select the apps for which you wish to receive alerts. 5. Alarm Set your alarm from your smartphone. Set your watch alarm using the smartphone app. The alarm can be set for different times for different days of the week. 6. Light Level Indicator See how much light—and power—your dial is getting. Find out how much power your watch is generating by tracking the light it’s exposed to on a daily, weekly or monthly basis. This unique function reflects CITIZEN’s status as a pioneer of light-powered technology. 7. Smartphone Search Find your smartphone easily. Mislaid your smartphone? Not a problem. Use your watch to locate your phone by getting it to emit a sound to indicate its whereabouts. (Range limitations apply.) 8. Link Loss Alert Get alerted when you’ve forgotten your smartphone somewhere. The watch emits a sound, vibrates or rotates the hands to let you know when the link between your smartphone and your watch is broken. This app requires iOS 9.3 or later. Optimized for iPhone 5 or greater. *Even if your smatphone is under the conditions above, there is no guarantee to use the dedicated app correctly on your smartphone. About Eco-Drive: Eco-Drive is a CITIZEN proprietary light-powered technology which eliminates the need of periodic replacement of batteries. Eco-Drive generates power from any kind of light—from sunlight to dim light—to drive the watch, and stores the surplus on a rechargeable cell. On a single full charge it can run for up to six months in total darkness*. For more details, click here. http://www.citizenwatch-global.com/technologies/index.html#eco-drive * Some models run for less than six months.
Montblanc Summit
This companion app enhances your smartwatch experience by offering easy setup, notification management, and personalized watch face customization. Explore tutorials and activity insights to optimize your device's functionality and tailor it to your lifestyle.
- Easy smartwatch setup and pairing
- Manage notifications, messages, and calls
- Customize watch faces with various options
- Explore smartwatch features with tutorials
- Adjust battery and display settings
- Track activity and progress insights
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The Companion app to your Montblanc Summit 3* Your Montblanc Summit smartwatch marries timeless elegance and the latest technology so you can complement your personal style while optimising your fitness and daily well-being. With the Montblanc Summit Companion app, you can experience exclusive apps and features like watch face customisation. Start elevating your daily life with the Montblanc Summit smartwatch. EASY SETUP Seamlessly pair and set up your Montblanc Summit 3 to the Companion app in just a few simple steps. CONNECTIVITY RIGHT ON YOUR WRIST Stay on top of your schedule with ease by receiving notifications, messages, and phone calls directly on your wrist. The Companion app helps you manage what is important to you. EXPRESS YOUR STYLE Choose and adapt a watch face that reflects your personal style with our configurator. Customise hands, colours, indicators, and more. Organise and manage your watch faces right within the app. GET ACQUAINTED WITH YOUR MONTBLANC SUMMIT Explore all that your Summit has to offer with our comprehensive Discover section. Here you can find tutorials and explanations to help you better understand the features and functions of your smartwatch. FIT YOUR MONTBLANC SUMMIT TO YOUR LIFESTYLE Tailor your smartwatch to your unique needs by changing battery and display settings, controlling notifications, and managing your overall connectivity. GET DETAILED ACTIVITY INSIGHTS AND TRACK YOUR PROGRESS Stay informed and up-to-date on your latest activity data in the Activity section. Keep track of your goals and progress over time and celebrate your achievements. * For older Summit generations (Summit, Summit 2, Summit 2+, Summit Lite), please continue using the Wear OS by Google – Smartwatch Companion app.
Screenshots
Verdict
The clearest difference is review sentiment: CITIZEN Bluetooth Watch at 19% against Montblanc Summit's 4%. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | CITIZEN Bluetooth Watch | Montblanc Summit |
|---|---|---|
| Price | Free | Free |
| Rating | 2.9 (12 ratings) — better | — |
| Positive reviews | 18.8% of reviews — better | 4.2% of reviews |
| Number of ratings | 12 — better | — |
| Update frequency | Every 4 months | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 60 MB | 155 MB |
| Age rating | 4+ | 4+ |
| Developer | CITIZEN WATCH CO.,LTD | Montblanc International GmbH |
Customer experience
CITIZEN Bluetooth Watch
Montblanc Summit
In-app purchases
CITIZEN Bluetooth Watch
No in-app purchases
Montblanc Summit
No in-app purchases
Questions
Is CITIZEN Bluetooth Watch free?
Is Montblanc Summit free?
Do CITIZEN Bluetooth Watch or Montblanc Summit have ads?
Which is updated more often, CITIZEN Bluetooth Watch or Montblanc Summit?
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