New Xiaomi Phone Allows Calls Without Carrier Signal, Brings Super Powerful Hardware and Redefines Mobile Communication. Discover All the Details of This Launch!
Xiaomi unveiled on February 27, 2025 the Xiaomi 15 Ultra, its new flagship smartphone that promises to revolutionize the way we communicate. In addition to featuring super powerful hardware and an impressive camera system, the device surprises with a groundbreaking feature for the brand: it can make calls even without a carrier signal. That’s right! Thanks to satellite communication technology, the new Xiaomi phone can make calls without needing an internet connection or mobile network. Check out all the details below about the Xiaomi phone that can make calls even without signal!
Discover How the New Xiaomi Phone Makes Calls Without Signal
The standout feature of the Xiaomi 15 Ultra is its satellite communication technology, which supports the Star Communications platform, allowing the phone to connect directly to the Tiantong satellite network, enabling calls without relying on carrier towers.
According to Xiaomi, this feature allows a user to communicate with another within a radius of up to seven kilometers, even in places with no internet signal or mobile coverage. This feature can be extremely useful for those traveling to remote areas, such as mountains, deserts, or open sea.
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Volcanic lava transforms into threads as fine as human hair that travel over 30 kilometers by wind and fall like cutting rain on roofs and backyards in Hawaii and Iceland.
The Xiaomi 15 Ultra uses artificial intelligence (AI) to optimize connection quality in different scenarios, ensuring that communication occurs with minimal interference.
Xiaomi Leads the Way with Satellite Communication
Although satellite communication technology is not entirely new, the Xiaomi 15 Ultra brings a more sophisticated implementation compared to its competitors. Models like the iPhone 16 and Galaxy S25 Ultra already support sending SMS via satellite, but this function is only aimed at emergency situations.
Xiaomi, on the other hand, is taking this technology to a new level, allowing real voice calls between devices within the same coverage radius. This makes the Xiaomi 15 Ultra one of the most advanced smartphones on the market in terms of connectivity.
Snapdragon 8 Elite: The Most Powerful Qualcomm Processor
In addition to advancements in connectivity, the new Xiaomi phone is equipped with the Snapdragon 8 Elite, the most powerful mobile chip from Qualcomm at the moment. This processor offers incredible performance for gaming, multitasking, and heavy applications, ensuring smooth operation in any situation.
With up to 16 GB of RAM and 1 TB of internal storage, the Xiaomi 15 Ultra promises to be one of the fastest and most efficient smartphones on the market.
200 MP Periscope Camera
Xiaomi has always placed a strong emphasis on photography, and with the Xiaomi 15 Ultra, it’s no different. The smartphone comes with a 200 MP periscope camera, promising impressive clarity and long-range zoom without quality loss. Additionally, the camera setup includes:
- 50 MP Main Camera, ensuring detailed images and vibrant colors;
- 50 MP Telephoto Lens, for optical zoom without quality loss;
- 50 MP Ultrawide Sensor, ideal for panoramic and wide-angle shots;
- 32 MP Front Camera, for high-definition selfies.
With this powerful photographic setup, the Xiaomi smartphone that can make calls even without signal promises to be one of the best options for those looking for a premium smartphone with advanced photographic capabilities.
Battery and Charging: Autonomy for the Whole Day
Another highlight of the Xiaomi 15 Ultra is its battery of 6,000 mAh, an impressive capacity for a premium smartphone. Additionally, the phone supports:
- 90W Wired Fast Charging, ensuring a full charge in just a few minutes;
- 50W Wireless Charging, for greater convenience in daily use.
With this combination, the Xiaomi 15 Ultra offers excellent autonomy, allowing users to enjoy the device without worrying about the battery throughout the day.
6.7-Inch LTPO AMOLED Display: Impeccable Image Quality
To complete the premium package, the Xiaomi 15 Ultra features a 6.7-inch LTPO AMOLED display, delivering an incredible visual experience. Among the screen’s features are:
- 3200 x 1440 Pixels Resolution, ensuring sharp and detailed images;
- 120 Hz Refresh Rate, for smooth and responsive navigation;
- Vibrant Colors and High Brightness, ideal for videos, games, and multimedia content.
With this high-quality display, the new Xiaomi phone stands out as an excellent option for anyone seeking a premium experience in any type of use.
Specifications of the Xiaomi 15 Ultra
| Specification | Details |
|---|---|
| Processor | Snapdragon 8 Elite |
| RAM | Up to 16 GB |
| Internal Storage | Up to 1 TB |
| Display | 6.7″ AMOLED LTPO (3200 x 1440 pixels), 120 Hz |
| Rear Cameras | 200 MP (periscope), 50 MP (main), 50 MP (telephoto), 50 MP (ultrawide) |
| Front Camera | 32 MP |
| Battery | 6,000 mAh with 90W wired and 50W wireless fast charging |
| Operating System | Android 15 with HyperOS 2 |
| Unique Feature | Satellite Calls with Star Communications |
Price and Availability of the New Xiaomi Phone
The Xiaomi 15 Ultra has already been officially launched in China, and its global version was presented during MWC 2025. However, there is still no forecast for its arrival in Brazil, as Xiaomi tends to concentrate its premium launches in other international markets.
The device can be purchased from online stores that handle imports, such as Shopee and Mercado Livre. However, as it does not have approval from Anatel, it is important to highlight that the warranty and operation in Brazil may be limited.
Should the Xiaomi phone capable of making calls even without a signal not be officially launched in the country, brand fans will still have the option to import the device — albeit aware that there may be additional fees.
What do you think of this major launch from Xiaomi? Share your opinion in the comments!


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