When the Xiaomi Mi 9 smartphone came out: the release chronology, features and why it changed the market

Xiaomi Mi 9 is one of those smartphones that not only appeared on the market, but literally changed the idea of the ratio of price to quality, its release was an event not only for fans of the brand, but for the entire industry: Finally, flagship specs are no longer the privilege of devices for 1000$. But when exactly did this legendary device premiere? And why is the release date still controversial among enthusiasts?

If you’re looking for the exact answer to the question “when did Xiaomi Mi 9 come out,” the official launch date is February 20, 2019. However, the history of this smartphone is much more interesting than a simple date. In this article, we’ll break down not only the release timeline, but also the technical innovations that made the Mi 9 a real breakthrough. You’ll learn about pre-release leaks, market reaction, and how this model has affected subsequent generations of Xiaomi smartphones. For collectors and those planning to buy used devices, we’ve also prepared a table with key events in the Mi 9 lifecycle – from the announcement to the end of official support.

The official release date of Xiaomi Mi 9: the chronology of events

Xiaomi Mi 9 premiered on February 20, 2019 in China at a special event dedicated to the 9th anniversary of the company. It was a strategically important moment: the brand demonstrated its maturity and willingness to compete with Samsung and Apple on an equal footing. Interestingly, a few days before the official announcement, the network appeared full characteristics of the device — so-called “leaks”, which Xiaomi did not deny, but instead used to warm up interest.

The first sales started on February 26, 2019 in China, and the global release took place a little later in March, while in some regions, such as Europe, the smartphone was only introduced in April due to logistical nuances.

• 📅 February 20, 2019 – official presentation in Beijing.
• 🛒 February 26, 2019 – start of sales in China.
• 🌍 March 2019 – Global sales start (India, Spain, Italy).
• 🇷🇺 April 2019 – appearance in Russian stores.

Curious fact: Xiaomi Mi 9 became the first smartphone of the company, which was officially sold in the network of salons “Svyaznoy” and “Euroset” in Russia, a major step for the brand, which previously distributed its devices mainly through online channels.

Why the Mi 9 release date caused controversy: pre-release leaks and marketing moves

A month before the official announcement, the network began a real “hunt” for information about the Mi 9. Bloggers and insiders published renders, specifications and even prices — some of the data was accurate. The most high-profile leak occurred a week before the presentation, when the network appeared a full video review of the device with a detailed analysis of all the features, Xiaomi did not remove these materials, but instead used them for viral promotion.

Experts are still arguing whether the leaks were a planned marketing ploy or a real negligence, with arguments for both versions:

The most intriguing detail: one of the leaked videos showed the Mi 9 logo with the inscription "5G Ready, although officially 5G-version (Mi Mix 3) 5G) This led to theories that Xiaomi was testing. 5G-modules in the Mi 9 prototypes, but they were not integrated into the final version due to the high cost of the chipset.

⚠️ Please note: if you see offers to buy the Xiaomi Mi 9 5G" — It's a fraud. 5G-There's no version of this model. All the "modifications" with support. 5G — It is a fake or re-labeled Mi Mix 3. 5G.

Xiaomi Mi 9: What made it revolutionary

The Xiaomi Mi 9 was the first smartphone to feature Qualcomm's flagship Snapdragon 855 chipset, the most powerful processor for mobile devices at the time, but the real revolution was the triple main camera, developed in conjunction with Sony and Samsung.

• 📸 48 MP main sensor (Sony) IMX586) Tetra-cell technology (combining 4 pixels into 1 for better light sensitivity).
• 🔍 16 MP ultra-wide-angle module (117)° field of view) – a rarity for 2019.
• 🎯 12 MP telephoto lens with 2× Optical zoom (real, not digital!).
• ⚡ 20 watt fast charging (the Quick Charge 4 adapter was included in the package)+).
• 🔋 The 3300 mAh battery is modest by today’s standards, but optimized thanks to the fact that the battery is not so good. MIUI 10.

Another innovation is the underscreen fingerprint scanner (optical, not ultrasonic, like the Samsung Galaxy). S10). At the time of release, this was rare even among flagships, and the Mi 9 received wireless charging (20 watts), which was the first time Xiaomi had ever had a wireless charging system.

Not everything was perfect, however, because the lack of a 3.5mm headphone jack caused a wave of criticism, as Xiaomi dropped it for the first time in its flagship lineup, and users noted overheating during long gaming sessions due to its compact body and powerful chipset.

Comparison with competitors: how the Mi 9 overtook the Samsung Galaxy S10 Huawei P30

In 2019, Xiaomi Mi 9 competed with giants like Samsung Galaxy S10 (It was released on February 20th, the same day! P30 Pro (presentation March 26) and the Chinese brand offered comparable performance for 1.5 to 2 times less:

The Mi 9’s main advantage is price/quality, for example, its screen was as bright as the Galaxy in color. S10, Performance in games was better due to better optimization MIUI The Snapdragon 855, however, had its own trump cards:

• 🔄 Samsung Galaxy S10 Offered reverse wireless charging (you could charge other devices from your phone).
• 🔍 Huawei P30 Pro stood out with periscope zoom 5× And the best night shot.
• 💧 Both competitors had official protection under the standard. IP68, The Mi 9 is not certified.

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Xiaomi Mi 9 proves flagship specs don’t have to cost $70,000+ Its release forced Samsung and Huawei to revise the pricing policy in the segment of premium smartphones.

Xiaomi Mi 9 Life Cycle: From Release to End of Support

Xiaomi Mi 9 gets 4 years of official updates MIUI 12.5 based on Android 11, which was a record for the brand at the time, but a year after the release, the first signs of aging appeared":

• 🔋 Battery degradation: after 18–24 months, capacity dropped to 75–80% of the original capacity.
• 🔥 Overheating in games: due to compact body and lack of active cooling.
• 📱 "Yellow Spots on Screen: A Typical Problem AMOLED-matrices after 2-3 years of operation.

Here are the key milestones of the model life cycle:

⚠️ Note: If you buy Xiaomi Mi 9 in 2026, note that official security updates have long since stopped, which means vulnerability to new viruses and application compatibility issues.

The relevance of Xiaomi Mi 9 in 2026: is it worth buying?

5 years after the release of the Xiaomi Mi 9 can still be found on the secondary market at a price of 8 000-15,000 rubles. But how relevant is it today?

✅ Pros of buying in 2026:

• 💰 Low price for Snapdragon 855 flagship chipset (still pulling on modern challenges).
• 📸 High-quality camera for its time (48 MP with good detail in daylight).
• 🔧 Active community: many custom firmware, repair manuals.

❌ Cons and pitfalls:

• 🔋 Battery: even when replaced, the original batteries last no more than 2-3 years.
• 📱 Screen: AMOLED-matrix is prone to burnout (yellow spots, uneven illumination).
• 🔒 Security: Lack of updates makes phone vulnerable to hacking.
• 🎮 Snapdragon 855 does not support new games API (Vulkan 1.3, for example, may not be running any games.

Who's the Mi 9 for today?

• 📷 Amateur photographers who need a good camera for a little money.
• 🎮 Gamers on a budget (pulls Genshin Impact on medium settings, PUBG high-pitched).
• 🔧 Enthusiasts of custom firmware, ready to mess with TWRP Magisk.

Who shouldn't take:

• 📲 Those who want long-term support (no security updates are available).
• 🔋 For those who forget to charge their phone (the battery sits down in 4-5 hours in games).
• 💼 Business users (no official support for Android 12)+, Problems with corporate applications).

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Before buying a used Xiaomi Mi 9, be sure to check the serial number on the official Xiaomi verification site. Counterfeiting is often sold under the guise of the original, especially on Avito and the Avito. OLX.

Xiaomi Mi 9: What to choose instead of it in 2026

If the Mi 9 doesn’t suit you, but you need a smartphone with similar specs, consider these alternatives (new and used):

If you need a budget flagship with modern support, pay attention to the POCO F5 (2023, Snapdragon 7+ Gen 2) or Redmi Note 12 Pro+ (200 MP camera, 120 Hz screen. They will cost 20,000-25,000 rubles, but will last longer thanks to the latest hardware and updates.

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The Xiaomi Mi 9 is a great choice for enthusiasts and those willing to put up with an aging platform for a low price. For everyday use in 2026, it’s better to consider newer models, even if they cost a little more.

FAQ: Frequent questions about Xiaomi Mi 9