Our Opinion

The OnePlus 3T 64GB is a significantly better phone, but the Xiaomi Mi A1 (Android One) is significantly better value for money. Which phone should you buy? Depends on how much you want to spend!

OnePlus 3T 64GB  Xiaomi Mi A1 (Android One) 
OnePlus 3 Xiaomi Mi A1
Buy Now  not available currently Buy
Excellence Score
60.8
38.4
Value for Money Score
64.7
74.3
Price ₹ 29,999 onwards ₹ 15,100 onwards
Launch Date (India) Dec, 2016 Sep, 2017
Expected Launch Date N/A N/A
Smartphone OS Android 6.0 Marshmallow, Upgradeable to 8.0 OreoExpected update to next Android version Android 7.1 Nougat, Upgradeable to 8.1 OreoExpected update to next Android version
Touchscreen Yes (Capacitive) Yes (Capacitive)
Screen Size 5.5 inches 5.5 inches
Screen Resolution 1080x1920 pixels (~ 401 pixels per inch) 1080x1920 pixels (~ 401 pixels per inch)
Scratch Resistant Display Yes, Corning Gorilla Glass 4 Yes, Corning Gorilla Glass
Display Features Optic AMOLED, Night Mode Display LTPS IPS LCD
Full Physical QWERTY Keypad
Processor 2.35 GHz 2 GHz
Processor Type Quad Core Octa Core
Processor Name Qualcomm Snapdragon 821 Qualcomm Snapdragon 625
GPU Adreno 530 Adreno 506
RAM 6 GB 4 GB
3G Yes Yes
4G Yes Yes
VoLTE Yes Yes
WiFi Yes Yes
GPS Yes Yes
Bluetooth Yes Yes
USB Yes Yes
Camera 16.0 MP 12.0 MP
Camera Auto-Focus Yes Yes
Camera Flash Yes Yes
HD Video Recording Yes (4K) Yes (4K)
Other Camera Features Sony IMX 298 Sensor, Optical Image Stabilization, Phase Detection Auto Focus, Dual-LED Flash, 1/2.6" Sensor Size, 1.12 um Pixel Size, EIS, F/2.0 Aperture, Slow Motion Video, RAW Image Support, Auto-HDR, Dynamic Denoise, Manual Control, Clear Image Dual Camera (12MP + 12MP), Wide-angle Cam.: 26mm Focal Length; F/2.2 Aperture; 1.25um Pixel Size, Telephoto Cam.: 50mm Focal Length; F/2.6 Aperture; 1.0um Pixel Size, Phase Detection Autofocus (PDAF), 2x Optical Zoom, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama, Slow Motion Video
Secondary Camera 16.0 MP 5.0 MP
Secondary Camera Features Full HD Video Recording, F/2.0 Aperture, EIS, Smile Capture, Samsung 3P8SP Sensor, Phase Detection Autofocus (PDAF), 1.0 um Pixel Size Beautify, Facial Recognition, Full HD Recording
Internal Memory 64 GB 64 GB
Expandable Memory Slot up to 128 GB
Contacts Storage Unlimited Unlimited
SMS Storage Unlimited Unlimited
Music Player Yes Yes
FM Radio
Dual SIM GSM+GSM GSM+GSM (Hybrid SIM slot)
Thickness 7.35 mm 7.3 mm
Weight 158 gm 165 gm
Audio Output 3.5mm jack 3.5mm jack
Water Resistant
Battery Capacity 3400 mAh 3080 mAh
Battery Standby N/A N/A
Battery Standby (3G) N/A N/A
Battery Talktime N/A N/A
Battery Talktime (3G) N/A N/A
Fast Charging Yes, Dash Charge Yes
Other Battery Parameters N/A N/A
Fingerprint sensor Yes Yes
Other Features Alert Slider; Gesture Control (Display On + Display Off); Fast Battery Charging: 60% in 30 min (Dash Charge); OnePlus Shelf; DLNA; NFC; WiFi Direct; USB Type-C; Noise Filtration Fast Battery Charging; Dedicated 10v Amplifier; USB Type-C; WiFi Dual-band; WiFi Direct; Noise Filtration
2-minute Review [Positives]
  • Excellent build quality
  • Premium, high-end aluminum unibody design that gives the phone a truly elevated aesthetic compared to its predecessors
  • Super sleek at 7.35mm
  • Chamfered details around the display and charging port catch and reflect light to add to the looks
  • OnePlus' useful notification toggle is carried over from the previous OnePlus device, and is handy as ever
  • Bright, sharp AMOLED display
  • Oxygen OS UI keeps things nice, simple, and close to stock Android, is quite stable, and adds useful touches like the "shelf" homescreen, as well as handy customization options for power users - overall it works very well, and doesn't include any bloatware
  • Breathtaking, and flagship-beating performance backed by powerful hardware and an astounding 6GB of RAM - now goes even one step better with the Snapdragon 821 processor (as opposed to the 820 on OnePlus 3), although the difference between the two will only be noticeable in the heaviest apps/games
  • Excellent heat management - the phone doesn't get hot even when put under high stress levels
  • Very good camera, that compares well with the top flagship phones
  • Camera interface is fast, minimalistic, and intuitive
  • Support for 4K video, as well as time-lapse and slow-motion movies
  • Front camera is even better than the OnePlus 3 (which itself had one of the best front cameras on a phone) and now takes even sharper selfies, even in low light
  • Excellent battery life, that goes one up even on the already good OnePlus 3 - comfortably lasts the whole day even with heavy use
  • Super quick charging battery (OnePlus calls it "Dash Charging") that can completely charge the phone from 0 to 100% in a little more than 1 hour, beating other "quick charging" phones by a good margin
  • Incredibly fast and accurate fingerprint sensor
  • Decent loudspeaker, with good volume levels
  • Excellent audio quality via headphones
  • On the whole, while the OnePlus 3 is easily one of the best and most well-rounded Android phones ever made, the OnePlus 3T takes it a step ahead, and makes a great phone even better
  • Very good, premium design, with top-notch metal construction
  • The overall form factor and weight remain quite ergonomic
  • Very good, balanced display - good responsiveness, brightness levels, and sunlight legibility
  • Runs clean, clutter-free and simple stock Android out of the box - and comes with the 'Android One series' update promise!
  • Strong, dependable performance, powered by a power-efficient Snapdragon 625 - running on stock Android eliminates some of the overheads on the processor and the phone presents a super smooth and lag free experience on general day-to-day things - it’s solid and will suffice for most except the most demanding of users
  • Good, solid dual-camera setup - Xiaomi’s stereo mode is its take on Apple’s “portrait mode”, and its task is to blur the background - the final effects are commendable most of the times - sometimes even better than much more expensive phones like the OnePlus 5 - making it easily the best dual camera system on a budget
  • Even in auto mode, the Mi A1 takes rich images with good levels of detail and colour saturation
  • There is also a very effective pro mode which even allows the user to individually choose between the wide angle camera and the telephoto lens - making for a very compelling camera package
  • Xiaomi also offers 2x optical zoom with this device - and the results are quite good
  • Video recording is decent too - it can shoot in 4k, and has time lapse and slow motion modes
  • The front 5-megapixel camera for selfies is decent too, though nothing exceptional
  • Good audio quality and volume via both headphones and the speaker
  • Good, dependable battery life - comfortably lasts a work day
  • Takes about 2 hours to charge fully - which is a decent charging speed
  • On the whole, if you are only concerned about performance and battery life, then the Redmi Note 4 may be a better choice, and if you care most about low light camera performance, then the Moto G5S Plus is at the top of the pack, but for an overall dependable phone with a dual camera setup, and stock Android experience, the Mi A1 is a brilliant choice
2-minute Review [Negatives]

No Major Negatives!

  • The performance is solid and dependable but not the absolute best in this price bracket - that status belongs to the likes of the Redmi Note 4
  • The camera is quite good in daylight conditions, but falls behind in low light prowess compared to say the Moto G5 Plus or Samsung Galaxy J7 Max - low light photos can sometimes be blurry and they take considerable time to process
  • Battery life is again strong, but not the best in this price bracket - that is again a position that's held by Xiaomi's Redmi Note 4
Expert Reviews
  1. OnePlus has somehow made what was already a great device an even better one
    gsmarena.com in-depth Read Review »
  2. This is our new favorite budget flagship Android, but if you have the OnePlus 3, you don't need to upgrade
    cnet.com in-depth Read Review »
  3. The OnePlus 3T is a refinement that not only feels timely, but also well-planned and executed.... you'd have a hard time finding a better phone for the price.
    engadget.com in-depth Read Review »
  4. phonearena.com in-depth Read Review »
  5. theverge.com in-depth Read Review »
  6. in.techradar.com in-depth Read Review »
  7. gadgets.ndtv.com in-depth Read Review »
  8. fonearena.com in-depth Read Review »
  9. digit.in in-depth Read Review »
  10. androidauthority.com in-depth Read Review »
  11. trustedreviews.com in-depth Read Review »
  12. indianexpress.com in-depth Read Review »
  13. economictimes.indiatimes.com in-depth Read Review »
  14. tech.firstpost.com in-depth Read Review »
  15. hindustantimes.com in-depth Read Review »
  16. ibtimes.co.in in-depth Read Review »
  17. news18.com in-depth Read Review »
  18. expertreviews.co.uk in-depth Read Review »
  19. thequint.com in-depth Read Review »
  20. livemint.com in-depth Read Review »
  21. stuff.tv in-depth Read Review »
  22. zdnet.com in-depth Read Review »
  23. slashgear.com in-depth Read Review »
  1. gsmarena.com in-depth Read Review »
  2. techradar.com in-depth Read Review »
  3. gadgets.ndtv.com in-depth Read Review »
  4. fonearena.com in-depth Read Review »
  5. digit.in in-depth Read Review »
  6. bgr.in in-depth Read Review »
  7. androidauthority.com in-depth Read Review »
  8. trustedreviews.com in-depth Read Review »
  9. indiatoday.intoday.in in-depth Read Review »
  10. indianexpress.com in-depth Read Review »
  11. economictimes.indiatimes.com in-depth Read Review »
  12. ibtimes.co.in in-depth Read Review »
  13. news18.com in-depth Read Review »
  14. livemint.com in-depth Read Review »
  15. slashgear.com in-depth Read Review »
  16. themobileindian.com in-depth Read Review »
  17. t3.com in-depth Read Review »
  18. beebom.com in-depth Read Review »
  19. androidpolice.com in-depth Read Review »
  20. techadvisor.co.uk in-depth Read Review »
User Reviews
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Official Website Official Website » Official Website »
Unofficial specs? N/A N/A
Individual Review 2
  • Individual Review 2
Individual Review

OnePlus 3T Review: T is the new S!

Marques Brownlee

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Individual Review

Xiaomi Mi A1 review: the perfect budget phone?...

Android Authority

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Full Review

OnePlus 3T Review: T is the new S!

Marques Brownlee

Full Review

Xiaomi Mi A1 review: the perfect budget phone?

Android Authority

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