Comparison

CO vs EohLink

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

CO

This app syncs data from a smartwatch, including steps, heart rate, and sleep. It also pushes phone notifications to the watch and allows for watch configuration like alarms and weather updates. Health data is for reference only and not for medical use.

Highlights
  • Sync steps, calories, heart rate, sleep, and exercise
  • Display data intuitively with a new UI
  • Push phone calls and text messages to the watch
  • Configure watch alarms, schedules, and backlighting
  • Sync weather and AGPS files for watch location
  • Access iPhone Health for real-time data sync
Features
Read full description

CO FIT is a newly designed and developed app for our new smartwatch collection only. main feature: Sync your steps, calories, mileage, heart rate, sleep and exercise records from your watch. The newly designed UI can display data more intuitively. After binding and authorization, we will push the phone's incoming calls and text messages to the watch to avoid losing information. You can use the app to configure the watch's sedentary alarms, alarms, schedules, backlighting, as well as sync weather and AGPS files (to help the watch locate) and other features for better use of the watch. During use, if you have any questions, you can ask at any time, we will listen to your suggestions and make improvements. Disclaimer: 1. The data displayed by the app is provided by the device, and the app only records and shares 2. All health data displayed in the app are not suitable for medical use, all health data are for reference only, these data should not be used as a substitute for the opinions of health care professionals For accurate data, consult your doctor. Authorization Instructions 1. We will access iPhone Health, sync device data to iPhone Health in real time 2. We will access the mobile phone location to obtain local weather information and synchronize it to the device display

About

EohLink

Features
Read full description

EohLink connects supported Bluetooth wearables to your employer's EOHours health monitoring system. Workers can sign in with their employee ID, pair a compatible wearable band, and securely upload health metrics such as heart rate, body temperature, and blood oxygen for workplace health and safety monitoring. EohLink is designed for authorized workforce use with EOHours / BuildCare. It is not intended for medical diagnosis, treatment, or emergency response. Requires a compatible wearable device and an active worker account.

Screenshots

CO4 screens
EohLink4 screens

Verdict

The call

The clearest difference is ads: EohLink at none against CO's shown. EohLink also leads on iOS requirement (10.0 vs 14). CO's advantage is update cadence (fortnightly vs every 2 months). On price, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

CO ships an update fortnightly, EohLink every 2 months. The most recent releases landed on November 11, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
CO versus EohLink: the parameters behind the verdict, then further details
ParameterCOEohLink
PriceFreeFree
Rating4.5 (1.2K ratings) — better—
Positive reviews26.9% of reviews—
Number of ratings1.2K — better—
Update frequencyFortnightly — betterEvery 2 months
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPodiPhone, iPod
Requires iOS1410.0 — better
Further details — not scored
Size702 MB18 MB
Age rating12+4+
Developer深圳叩鼎科技有限责任公司Li Chen

Bugs and requests

CO

Reported bugs

7 issues
  • Time setting not working
  • Watch disconnecting frequently
  • Inaccurate step and distance tracking
  • Inability to change weight in user profile
  • Firmware update bricking the watch
Show 2 more
  • Syncing issues with iPhone
  • Bluetooth not connecting properly

Requested features

7 requests
  • More watch face designs
  • Customization options for watch faces
  • Integration with Apple Health
  • Ability to remove unwanted features
  • Better language support
Show 2 more
  • Improved notification handling
  • GPS functionality

EohLink

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

CO

No in-app purchases

None

EohLink

No in-app purchases

Questions

Is CO free?
CO is free to download, with no in-app purchases.
Is EohLink free?
EohLink is free to download, with no in-app purchases.
Do CO or EohLink have ads?
CO shows ads; EohLink does not.
Which is updated more often, CO or EohLink?
CO ships an update fortnightly, and EohLink every 2 months. Most recently, CO was updated on November 11, 2026 and EohLink on November 5, 2026.

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