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COLMI I31 Smartwatch 1.43 Inch AMOLED Screen 100 Sports Modes 7 Day Battery Life Always On Display Smart Watch Men Women

37 reviews
100% of buyers enjoyed this product! 5 orders



COLMI i31 – AMOLED Smartwatch

COLMI i31 is our AMOLED smartwatch (round shape) for 2023.

Larger and clearer screen: Using a 1.43-inch AMOLED screen with a resolution of 466*466, the pixel is 3.77 times that of other smart watches. At the same time, it supports the Always On Display function, and the time is always visible.

Stronger chip: The main chip uses Realtek RTL8763E chip, which brings more powerful performance and lower power consumption, and the Bluetooth connection is more stable.

More functions: 5 sets of UI interaction, support voice assistant, Bluetooth call.

COLMI i31 Spec.

Model: COLMI i31
Main chipset: Realtek RTL8763E
Display Size: Large 1.43” Ultra HD AMOLED Display, Supports Always On Display Mode.
Display Resolution: 466*466 pixels, 326 PPI.
Battery Capatcity: 250 mAh
Battery life: 5-7days
Waterproof level: IP67 Waterproof
APP: “FitCIoudPro”
Suitable for mobile phones with Android 4.4 or higher, or iOS 9.0 or higher.


Health Features:
24/7 Heart Rate monitor, Blood oxygen sensor, Sleep tracker, Breathe, Drink water reminder, Reminder to move, Women’s Physiological cycle, Support health APP.

Life Features:
Bluetooth Answer Call, Bluetooth Dial Call, Messages Reminder, Alarm clock, Timer, Weather, Music remote, Camera remote, Find phone, Calculator, Dynamic watch face, watch face market (200+ watch faces), custom watch faces(you can set the picture you like as the watch face), Set the screen off time, Do not disturb mode. Built-in 2 games, 4 User Interface.

Sports Features:
All-Day Activity Tracking( Steps, calories, distance ), IP67 waterproof, 106 Exercise Modes, Sports Data Report.

Watch Faces

APP Sync: 200+
System Default: 5
Always-on Displays: 2
Customize Watch Faces: Support


Watch language: English, Russian, Spanish, Portuguese, French, Japanese, Arabic, Dutch, Italian, Czech, Egyptian, Indonesian, Polish, Vietnamese, Ukrainian, German, Chinese.

Sport modes:

Walking, Running, Rope skipping, Rower,Lazy car, Exercise bike, Cycling, Outdoor Cycle, Outdoor Run, Indoor Run, Outdoor Walk, Mountaineering, Basketball ,Badminton, Football, Elliptical trainer, Yoga, Table Tennis, Jump Rope, Rowing Machine, Free Training, Tennis, Baseball, Rugby, Cricket, Strength Training, Indoor Walk, Indoor Cycle, Dance, Hula Hoop, Golf, Long jump, Sit up, Volleyball, Parkour, Hiking, Hockey, HIIT, Softball, Trail running, Skiing, Air Walker, Cool down, Cross Training, Pilates, Cross fit, Functional Training, Physical Training, Mixed Cardio, Latin Dance, Street Dance, Kickboxing, Barre, Australian Football, Bowling, Racquetball, Curling, Snowboarding, Fishing, Disc Sports, Downhill Skiing, Core Training, Skating, Fitness Gaming, Aerobics, Group Training, Kendo, Fencing, Stairs, American Football, Rolling, Pickle ball, Boxing, Taekwondo, Karate, Flexibility, Handball, Hand Cycling, Mind & Body, Wrestling, Step Training, Tai Chi, Gymnastics, Athletics, Martial Arts, Play, Snow Sports, Lacrosse, Single Bar, Parallel Bars, Roller Skating, Darts, Archery, Horse Riding, Shuttlecock, Ice Hockey, Waist training, VO2max Test, Judo, Trampoline, Skateboarding, Hoverboard, Blading, Treadmill, Surfing, Pull-up, Push-up, Planking, Rock Climbing, High jump, Bungee Jumping, Folk Dance, Shooting, Marathon.

In stock – Fast shipping

The COLMI i31 smartwatch is in stock.

COLMi i31 New Box

Brand Story

COLMI was established in 2012.

Slogan: Your first smart watch.
Young and simple, but never naive.

Mission: Provide cost-effective smart electronics.

Band width[mm]

20 mm

Voice assistant built-in


Bluetooth-compatible Version




Metrics measured

Heart Rate Monitor,Other,Blood Oxygen Monitor,Sleep Monitor,Stress Monitor

Activity Tracked

Other,Steps Tracker,Distance Tracker,Calorie Tracker,Activity Tracker

Touch Screen



Smart Watches

App name


Screen Material


CPU Model

Realtek RTL8763E

Band Detachable


APP Download Available




Display Size

1.43 inches



Application Age Group


Screen Shape


Case Material


Band Material

Silica gel

Waterproof Grade

Professional Waterproof

SIM Card Available




Multiple Dials




Network Mode


Battery Capacity


Rear Camera









On Wrist


All Compatible




Passometer,fitness tracker,sleep tracker,Message Reminder,Call Reminder,Answer Call,Dial Call,Remote Control,Push Message,24 hour instruction,Alarm Clock,Heart Rate Tracker,Interactive Music,Calculators

Brand Name



Mainland China



Shipping and delivery

We are proud to offer international shipping services that currently operate in over 200 countries and islands worldwide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:

Location *Estimated Shipping Time
United States 10-30 Business days
Canada, Europe 10-30 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says "no information available at the moment".

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you have specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.

Refunds & returns policy

Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • You do not receive them within the guaranteed time (45 days not including 2-5 day processing)
  • You receive the wrong item
  • You do not want the product you have received (but you must return the item at your expense and the item must be unused)

We do not issue the refund if:

  • Your order does not arrive due to factors within your control (e.g. providing the wrong shipping address)
  • Your order does not arrive due to exceptional circumstances outside our control (e.g. not cleared by customs, delayed by a natural disaster)
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on page.

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

Real customer reviews

37 reviews
100% of buyers enjoyed this product!
5 stars
( 37 )
4 stars
( 0 )
3 stars
( 0 )
2 stars
( 0 )
1 star
( 0 )
  1. Customer

    Arrived in 8 days with shared delivery, the quality is very good, the watch is very light, the screen has correct and very bright colors, the sensors work well, for the price is a very good option to buy

  2. D***o

    Colmi products don't even have anything to say and this new model I31 is very top

  3. R***o

    Arrived with 20 days in Jundiaí sp. Packaging came sealed and no ditches. Excellent watch with very fluid system. The finish of it is simple but the screen is very good, AMOLED with high resolution of 466×466 pixels. I bought it to resell and as it is top it will come out fast!

  4. F***r

    Arrived within 16 day.. As in the description and the screen is very light and amoled.. Recommend the store

  5. L***S

    Arrived quickly and well packed, overtop, well finished product, beautiful and light… I'm gonna buy another…

  6. M***o

    Very minimalist watch, delicate look, more suitable for women, very light and with a very quality screen. Below a comparative between colmi I11 and i31. Both very good, I recommend.

  7. S***a

    good product as described functionalities are precise I recommend the store

  8. H***h

    Very top the product I really liked the gear the product is top arrived very fast store very good

  9. T***a

    Arrived before the estimated time. I started using last night, by the time I didn't find anything wrong or outside of what was presented. I only ordered it in gold (Rose) and it came pink… but it is the least, I think Q Da p change the bracelet.

  10. B***t

    this store send my I30 smart watch very fast delivered the material feels good and when i need more i will buy here again in this store. 5 stars *****

  11. J***e

    It's a cool smartwatch. The screen is super and the menu it's simple for everybody to understand. A good watch for a good price. It came to Romania in 2 weeks, came fast in my opinion. Thank you store

  12. D***a

    The best cost benefit of Ali Express. Great battery. Amazing screen AMOLED. Light. Sensors very calibrated. Comes with protective film. Great bracelet. I recommend

  13. A***d

    Very fast delivery and good product Thank you very much to the store

  14. J***a

    Super smartwatch. Beautiful elegant and has super useful functions. A very high quality canvas and overcoat is AMOLED. The colmi is to be congratulated. And arrived hyper fast.

  15. C***s

    I would like to thank the store because it is doing a great job continue I signed

  16. N***a

    Watch is very good, battery lasts about 7 days. Beautiful finish and if it is for women, the size is great!

  17. A***r

    Excellent product… System well fluid and quite simple to handle and the screen in AMOLED leaves everything even better

  18. M***o

    The item arrived in optimal condition, in a correct time, excellent store recommended, thank you

  19. R***N

    I am delighted, everything works perfectly, I will buy again. Recommended 100%

  20. Customer

    Happy the Watch arrived fast very good quality! I highly recommend

  21. M***R

    Arrived fast, came very well packed (sealed) in own box, excellent screen quality and product with impeccable finish!

  22. A***o

    Received successfully and out of schedule. Congratulations to the speedaf express shipping team.

  23. C***l

    I really liked the watch, I wanted it to be completely waterproof to be able to bathe with it and not worry but it's good.

  24. M***s

    Everything arrived right and ahead of the allotted time. I am satisfied with the product. it was worth a lot for the benefit. I have no doubt this store. thank you very much.

  25. Customer

    People don't even have 3 hours and I have the watch but I already found everything incredible, material, screen, presentation, everything, which I was looking for on a watch, it was worth every penny arrived very fast (interior of Sergipe) I believe it will last a long time. Super would buy again, loved the brand

  26. Customer

    Came quickly, when you set it up and try something else, I add new review. At the moment say that you have multiple configuration options that will have to be fiddled and the charging system is very comfortable.

  27. Customer

    It's good watch for this price. Got within 2 weeks

  28. G***r

    The watch is perfect! The features of it are amazing and the colors lived, very fluid! Has nothing to complain about him. My husband loved the gift and for those who did not like watches, it surprised me how he loved it! The designer of the watch is to the extent, very elegant! I loved

  29. B***l

    The product arrived as in the description thanks to the store. I got the watch on a month's pay.

  30. M***s

    Arrived in 15 days to Colombia, the screen is very sharp and the weight is not felt on the wrist, I recommend the store, try it for a few days and I will give an opinion of the autonomy of the battery

  31. A***s

    It is very beautiful I hope it is very good because I have already bought several of the colmi brand and there was no problem

  32. C***S

    Excellent smartwatch, easy to operate and very beautiful, came with protective film.

  33. M***o

    Excellent purchase for the price, reliable store and fast delivery. Just tested, good screen and Bluetooth calls sound amazing. Great gift, I will buy more.

  34. E***s

    The watch matches the ad and the store is congratulated I like it already I'm using

  35. H***e

    Well received thank you very much, it arrived in 16 days at no extra cost, the product conforms to the description it deserves its cost.

  36. J***A

    Easy to Buy, received earlier than expected, arrived in good condition, learning to handle it

  37. M***m

    Good arrival very fast about 11 days to Algeria thanks store

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