Weight Xiaomi Mi 9: technical characteristics and comparison with analogues

Xiaomi Mi 9 is one of the most popular flagships of the brand, released in 2019, but still remains a topical choice for many users. When buying a smartphone, the weight of the device often becomes a decisive factor: too heavy device is uncomfortable to hold with one hand, and too light can seem “toy”. In this article, we will not only answer the question of how much weighs Xiaomi Mi 9, but also analyze how this parameter affects ergonomics, compare with competitors and give advice on the choice of cases, given the weight of the device.

It's important to understand that the weight of a smartphone depends not only on the size of the screen, but also on the materials of the case, battery capacity and even assembly technology. For example, the Mi 9 is made using aluminum frames and glass panels, which adds to its "premium" but also increases the weight compared to plastic budgeters.

The official weight of Xiaomi Mi 9: data from the manufacturer

According to the technical specification from Xiaomi, the weight of the Mi 9 is 173 grams, which is indicated for the base version of the device without taking into account. SIM-And interestingly, there are small differences between different sources, from 170 to 175 g, but this is due to measurement errors or specific batches of smartphones.

By comparison, the Mi 9 SE (compact version) weighs only 155 grams, and the Mi 9 Pro with a more capacious battery is 196 grams. Thus, the Mi 9 occupies a “middle ground” between lightness and functionality. It is important to note that the weight is distributed evenly due to the symmetrical design, which reduces the load on the wrist during prolonged use.

• 📱 Basic version: 173 g (official data)
• ⚖️ Permissible error: ±2g (depending on lot)
• 🔋 Weight with a case: +20-40 g (depending on the material)
• 📦 Weight in the box: ~500g (smartphone) + accessories)

If you plan to use the Mi 9 with a protective glass and case, add to the base weight another 30–50 g For example, the silicone case will add ~25 g, and armored – up to 45 g.

Comparison of weight Xiaomi Mi 9 with competitors 2019-2020

To see how heavy or light the Mi 9 is, compare it to other brands from the same period, and the chart below shows the mass of popular models with similar screen sizes (6.3-6.4 inches).

As you can see from the table, the Mi 9 is lighter than most competitors, except for the Galaxy S10, while it is equipped with a flagship hardware (Snapdragon 855) and a triple camera, making it one of the most balanced devices in terms of weight and performance. Interestingly, the Huawei P30 Pro and OnePlus 7 Pro are 20 to 30 g heavier due to the capacious batteries and larger screens.

⚠️ Warning: The weight of a smartphone directly affects usability in one-hand mode. If it is critical for you, look for models up to 170g or consider the Mi 9 SE (155).

How weight affects ergonomics and usability

The weight of a smartphone is not just a number in the specification, but a parameter that directly affects:

• 🤲 One-handed ease: devices heavier than 180g often require two hands for comfortable use.
• 🎮 Playing experience: with long sessions in PUBG Mobile or Genshin Impact heavy smartphone tires the brush faster.
• 👖 Carrying in your pocket: lightweight models (up to 160 g) are less noticeable, and heavy ones can fall out of narrow pockets.
• 🔋 Quality perception: Many users associate weight with “premium” (for example, iPhones always seem “salter” because of the metal body).

With the Xiaomi Mi 9 (173g), most users don’t feel uncomfortable with daily use. However, if you’re used to ultra-light smartphones (like the iPhone 12 mini – 134g), the transition to the Mi 9 may seem noticeable. Tip: before buying, try holding the device in the store or order a case with anti-slip coating (like Spigen or Ringke).

💡

If your smartphone seems heavy, use a finger strap – it distributes the load and prevents falls.

Xiaomi Mi 9 weight in different versions: is there a difference?

The manufacturer has produced Mi 9 in several versions, and their weight may vary slightly:

• 📶 Mi 9 (standard, 6/128 GB): 173 s
• 📶 Mi 9 (version 8/128 GB 8/256 GB): 173 D (difference in memory only, weight identical)
• 📶 Mi 9 Transparent Edition: 173g (distinguished only by the rear panel design)
• 📶 Mi 9 SE: 155g (smaller screen and battery)

Important: the only modification with a different weight is the Mi 9 Pro 5G (196 g), which is heavier due to the more capacious battery (4000 mAh) and 5G module. If you are considering buying a used device, check with the seller the exact model - sometimes unscrupulous sellers give the Mi 9 Pro as a standard version.

How to weigh Xiaomi Mi 9 at home

If you're in doubt about the authenticity of the device, or if you want to check the weight with the case, you can use a household scale.

1. Take a kitchen scale with an accuracy of 1 g (e.g. Xiaomi Mi Smart Scale 2).
2. Make sure the scales are on a flat surface and reset the readings (press Tare or Zero).
3. Put your smartphone on a scale without a cover and film.
4. Compare the result with the official data (173 g ± 2 g).

If the weight differs by more than 5 g, this may indicate:

• 🔧 Fake (e.g., copy on MediaTek Helio instead of Snapdragon 855).
• 🔋 Non-original battery (blown or replaced).
• 🛠️ Repairs with replacement of internal components (for example, a heavier screen is installed).

⚠️ Warning: Some vendors are weighing up smartphones to make them look "stronger." If you weigh more than 180g without a case, this is a reason to be wary.

Weight and accessories: how not to overload the smartphone

Even a lightweight smartphone can become bulky if you overdo it with accessories.

• 📱 Cases: Choose thin silicone or polycarbonate models (weighing up to 20 g). Armored cases add 30-50 g.
• 🔋 Power Bank: If you wear an external battery, take models up to 5000 mAh (weight) ~120g).
• 🎧 Headphones: wireless Xiaomi AirDots weigh only 4 g each, while wired – 15-20 g.
• 📸 Gimbals/Stativas: even compact models (e.g, DJI Osmo Mobile 3 adds 300+ s.

Example of calculation of total mass:

Mi 9 (173 g) + silicone case (20 g) + glass (10 g) + AirDots in case (40 g) = 243 g. This is the weight of a small tablet! If you want mobility, give preference to minimalist accessories.

💡

The optimal weight of the “ecosystem” of the smartphone (with a case and headphones) is up to 250 g. Anything heavier can cause discomfort when wearing.

Frequent questions about the weight of Xiaomi Mi 9