Xiaomi Mi 8 Dual-SIM 64GB Smartphone (Unlocked, Black)

Xiaomi Mi 8 Dual-SIM 64GB Smartphone (Unlocked, Black)

Xiaomi Mi 8 Dual-SIM 64GB Smartphone (Unlocked, Black)

Xiaomi Mi 8 Dual-SIM 64GB Smartphone (Unlocked, Black)

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Product Highlights

  • GSM / 4G LTE Compatible
  • Latin America Variant/US Compatible LTE
  • Dual Rear 12MP Cameras
  • f/1.8 and f/2.4 Aperture with PDAF
  • Optical Image Stabilization (OIS)
  • 2.8/1.8 GHz Snapdragon 845 Octa-Core CPU
  • 64GB Storage Capacity + 6GB of RAM
  • 6.21" 1080 x 2248 Super AMOLED Display
  • Dual-Band GPS Support
  • Android 8.1 Oreo
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This device is carrier-unlocked and should work fully with the carriers listed below with green bars. Yellow bars denote partial network coverage. A SIM card and service plan must be purchased separately. Network compatibility listed here is for reference only and does not guarantee phone compatibility.

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Xiaomi Mi 8 overview

  • 1Description

The Mi 8 Dual-SIM 64GB Smartphone from Xiaomi features dual rear cameras, both at 12MP, and a 20MP front camera for your hi-res selfie needs. The dual rear cameras contain 4-axis OIS (Optical Image Stabilization) and dual pixel PDAF (Phase-Detection Autofocus). Together they are designed to give you cameras that focus quickly and make sure your images are crisp and clear. When it comes to video, the rear cameras can take them in up to 4K resolution, while the front camera can take videos in up to 1080p.

For videos, games, and apps, the Xiaomi has made sure that you have a screen worthy of your favorite content. It has a large 6.21" Super AMOLED multitouch screen with a 1080 x 2248 resolution that's designed to deliver vibrant colors, deep blacks, and rich contrast. The touchscreen and back of the phone are protected by scratch-resistant Corning Gorilla Glass 5.

Running the Android 8.1 Oreo operating system, this phone is powered by a 2.8/1.8 GHz (4 x 2.8 GHz Kryo 385 Gold & 4 x 1.8 GHz Kryo 385 Silver) Snapdragon 845 Octa-Core processor, and 6GB of RAM. You can store your apps, hi-res selfies, 4K videos, and more on the 64GB of built-in storage.

This phone is unlocked and compatible with GSM/4G LTE networks. Connect to the internet and other devices with built-in 802.11 a/b/g/n/ac 2.4+5 GHz Wi-Fi and Bluetooth 5.0. The Mi 8 also supports NFC technology for making phone-to-phone data transfers or mobile payments. If you travel a lot or have a separate work number, you can take advantage of the Dual SIM slots to access both accounts.

Android 8.1 Oreo
The Android operating system integrates heavily with Google's services. Using the card-based Google Now, Android quickly surfaces information for you whenever you need it, powered by the same Knowledge Engine that runs Google's web search. It's a personalized and customizable OS, allowing you to add your favorite apps or widgets to your home screen. You can even download new themes using the Google Play Store, which offers access to millions of apps, games, books, music, movies, and more. Android 8.1 Oreo adds major productivity and security capabilities to the operating system. They've introduced Google Play Protect, which scans apps on your phone to detect harmful behavior. With the touch of the Home button, continue to work in apps while watching active videos in Picture-in-Picture mode. Other features include, faster boot speed, automatically turning on Wi-Fi when near saved networks, limiting background activity for little used apps, notification snoozing, smart text selection, and more.
GSM / 4G LTE Wireless Connectivity
This phone is designed to work on select GSM networks and is 4G LTE capable. LTE is an advanced cellular network data protocol capable of data speeds so fast that they compete with wired broadband internet providers. With an LTE connection, this phone should have no problem streaming HD video, downloading apps, uploading photos, or anything else that requires a high-speed data connection. The phone is also backward compatible with 3G and 2G data for instances when you can't get LTE. In addition to cellular wireless, this phone also features Bluetooth and Wi-Fi connectivity.
Note: Not compatible with all cellular networks. Please make sure your provider uses a frequency or band that this phone supports. You can check which bands this phone works with in the Specifications.
Latin America Variant / US Compatible LTE
This is a Latin America variant. The Mi 8's LTE radio is tuned to frequencies that are most often used in the United States and North America, as well as Europe and elsewhere. To ensure this phone will work with your carrier, please check to make sure the frequencies your carrier uses are supported by this phone. The full list of compatible carrier frequencies can be found here, the frequencies this phone supports can be found in the product specs.

Because the Mi 8 is an Latin America variant, the language of the box and the default language of the phone may not be in English. Also, a Latin America AC to USB adapter may be included.
Dual SIM Dual Standby (DSDS)
Dual SIM Dual Standby (DSDS) allows you to lower your mobile costs when traveling while staying connected. Once your SIM cards are installed, you will be able to receive phone calls and text messages from either without needing to manually choose which one is active. When you want to make a call or send an SMS message, you can select the correct SIM card. When one SIM card is being used for a phone call, the other will not be active until you hang up. Operator charges may apply.
Additional Features
Dual-band GPS with support for A-GPS, GLONASS, BDS, GALILEO, and QZSS, which is designed to increase navigational accuracy.
Quick Charge 4.0 support
Rear-mounted fingerprint reader
HDR and panorama picture modes

Xiaomi Mi 8 specs

Operating System Android 8.1 Oreo
Memory 6 GB
Chipset Qualcomm Snapdragon 845
CPU 2.8 GHz Qualcomm Kryo 385 Gold Quad-Core
1.8 GHz Qualcomm Kryo 385 Silver Quad-Core
GPU Adreno 630
Storage 64 GB
Size 6.21"
Native Resolution 2248 x 1080
Display Colors 16.0 Million
Pixel Density 402 ppi
Display Technology OLED
Screen Coating Gorilla Glass 5
Input/Output Connectors
Ports 1x USB 1.0 - Type C (Input/Output)
Audio None
Flash Media Slot None
SIM Card Size Card 2: Nano
GSM 2G GSM, GPRS, EDGE: 850, 900, 1800, 1900 MHz
GSM 3G/3.5G UMTS, HSPA+: 850, 900, 1700, 1900, 2100 MHz
4G LTE LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 34, 38, 39, 40, 41 Bands
Wi-Fi Yes, Wi-Fi 5 (802.11ac)
Bluetooth Bluetooth 5.0 + LE 
Infrared No
FM Radio No
Front Camera
Resolution 20.0 MP / Video: 1920 x 1080p 30fps
Aperture f/2.0
Pixel Size 0.9 µm
Front Camera Flash
Front Camera Flash No
Rear Camera
Resolution 12.0 MP / Video: 3840 x 2160p 30 fps
Aperture f/2.4
35mm-Equivalent Focal Length 56
Sensor Size 1/3.4"
Pixel Size 1.0 µm
Optical Zoom 2x
Secondary Rear Camera
Resolution 12.0 MP / Video: 3840 x 2160p 30 fps
Aperture f/1.8
Focus Type Phase-Detect Autofocus
Pixel Size 1.4 µm
Sensor Size 1/2.6"
Image Stabilization Digital
Rear Camera Flash
Rear Camera Flash Yes
Number of LEDs 2
Sensors Accelerometer, Barometer (Altimeter), Compass, Fingerprint, Gyroscope, Proximity
Keyboard Virtual
Battery Internal Lithium-Ion (3400.0 mAh)
Fast Charging Technology Qualcomm Quick Charge 4.0
Dimensions (W x H x D) 2.9 x 6.1 x 0.3" / 74.8 x 154.9 x 7.6 mm
Weight 6.17 oz / 175 g
Packaging Info
Package Weight 0.955 lb
Box Dimensions (LxWxH) 6.7 x 3.5 x 2.1"

Xiaomi Mi 8 reviews

Mi 8 Dual-SIM 64GB Smartphone (Unlocked, Black) is rated 5.0 out of 5 by 3.
Rated 5 out of 5 by from Outstanding premium quality When I found out that B&H had Xiaomi devices in stock, I went crazy! I originally went for the Mi Mix 2S, but found the Mi 8. After purchase, this device has been AMAZING. The cameras are not the greatest but still take great photos. The Super AMOLED display is perfect, and the battery life is top notch (pun intended). The notch was the biggest concern for me, but I have found it to not be invasive, and apps get along perfectly with it. The quality of the haptic feedback and vibration is very premium. The device feels solid, paired with a very fluid OS experience. The fingerprint sensor responds swiftly and doesn't have any issues recognizing my finger. The only difficultly I have experienced so far is finding a quality screen protector for it. P.S. I use MetroPCS and LTE and HSPA+ work perfectly, one of my greatest concerns before purchase.
Date published: 2018-09-30
Rated 5 out of 5 by from Awesome Phone, Tremendous Value My last phone was the Samsung Galaxy S8+, which unfortunately got damage from a drop. I decided to replace it with something less expensive but still higher end. After much research I chose this Xiaomi Mi 8 despite having no experience with this Chinese brand. Turned out to be a great choice: this phone offers so much at a price level that can't be matched. The phone may copy the iPhone in some areas (screen notch, camera layout) but the body is very reminiscent of my Galaxy S8+. The size is very similar (Mi 8 is ever so slightly wider and shorter but nearly identical), the glass build front & back is identical, and the feel and look is familiar all around. The only difference is the curved edge design of the Galaxy. The phone has a nice heft and feels solid. The AMOLED display looks fantastic. It has a lower resolution than the Galaxy but the difference is negligible. The Mi 8 screen is super sharp, clear, and bright. The top-end Snapdragon 845 processor is blazing fast and the phone maneuvers with nary a lag, hiccup, or slowdown to be found. It handles anything you can throw at it (gaming, media, multitasking, etc) without a hitch. The rear-mounted fingerprint reader is also blazing fast and reliable. The camera is excellent and surpasses the S8+. The rear dual camera system captures sharp, vivid, detailed shots and is very capable in both high and low light environments. The dual system also produces great portrait photos (with the blurred background bokeh - two samples attached to show with & without blur). The front camera also produces great looking shots and can produce very nice portraits using software-based blurring. Overall, the camera competes with the best (and according to some tests bests the current frontrunners iPhone X and Google Pixel 2). Battery life on the phone is also great. It consistently gets me through a full day even with heavy usage. Every big as good as the also-excellent S8+ was and even a bit better. There are a few area where you might feel like you're compromising depending upon your needs. There is no headphone jack (I've already bought into the wireless headphone system), there's no expandable storage (something I do miss though I can work with the 64gb storage I have), and there's not official waterproof rating. In addition, the MIUI interface (running on Android Oreo), though super smooth and well integrated, does present some tweaks to stock Android that users may not prefer. I installed the free Nova Launcher to bring the experience closer to stock Android and it is totally acceptable and pleasant to use. One other observation: it's also harder to find online forums and helps for Mi 8 questions since the phone isn't as widely used in the US. Any minor complaints, however, cannot diminish the tremendous value of the Mi 8. For not much more than half of what I paid for my new S8+, this phone knocks it out of the park: top-tier blazing fast processor, solid build quality and design, beautiful display, tremendous battery life, and truly excellent camera. Awesome phone, tremendous value, and highly recommended.
Date published: 2018-09-29
Rated 5 out of 5 by from Tremendous Value My last phone was the Samsung Galaxy S8 Plus, which I dropped to its death. Decided to go cheaper with this Mi 8 to replace it, and am really impressed with the value. It looks a lot like the S8 Plus in size and general appearance, but without the curved screen edges and with a more Apple-esque rear camera layout. The Snapdragon 845 processor and 6GB of ram make this phone super fast, and the OLED display though lower res than the S8 still looks fantastic - bright and really vivid. The battery life is very good and easily gets me through a long day without issue. The dual camera rig on the back is great - better than the very good S8+ with the added 2x optical zoom and 2nd lens. It takes some really excellent photos. The UI is mostly good, though with occasional tweaks and minor quirks that I don't like as much as stock android (notifications disappear from the lock screen after you look at them once even if you don't dismiss them, for example). Ultimately, any issues I've had pale in comparison to the tremendous value of this phone. It has it where it matters most to me: super fast, fantastic camera, and very good battery life, all at a price nearly half of what my S8 Plus cost new. Love it!
Date published: 2018-10-18
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