> ## Documentation Index
> Fetch the complete documentation index at: https://help.dingtalk.io/llms.txt
> Use this file to discover all available pages before exploring further.
# Comparison of clock-in methods
> Compare the four DingTalk attendance clock-in methods—location-based clock-in, Wi-Fi clock-in, Zhidian Bluetooth clock-in, and Time Clock clock-in—along with their use cases, pros, and cons to help Admins choose the right option.
## 1. Overview
DingTalk supports four attendance methods: **location-based clock-in, Wi-Fi clock-in, Zhidian Bluetooth clock-in**, and **Time Clock clock-in**. Admins can refer to this article to learn the use cases, advantages, and disadvantages of each method, and select the option that best fits their Organization.
## 2. Details
| **Clock-in method** | **Use case** | **Advantages** | **Disadvantages** |
| --------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Location-based clock-in** | Suitable for Organizations with a **fixed Work Location** that allow users to clock in within a designated range (for example, 3,000 meters). | 1. **Supports mobile clock-in**: Users can clock in without waiting in line, improving efficiency.
2. Supports clock-in via **facial recognition**.
3. **Enables field attendance management**: Users can also perform field clock-in when working outside or from home.
4. **Easy to configure**: Simply add a Location to the attendance group to complete the setup. | 1. **Location accuracy is easily affected**: Positioning accuracy depends on the mobile device and signal strength, and in extreme cases may deviate by hundreds of meters.
2. **Mobile clock-in only**: Users can only clock in from a mobile device. |
| **Wi-Fi clock-in** | The Work Location **has office Wi-Fi**, allowing users to connect to the Company Wi-Fi to clock in, and provides a **relatively complete MAC address**. | 1. **Supports mobile clock-in**: Users can clock in without waiting in line, improving efficiency.
2. Supports clock-in via **facial recognition**.
3. **Enables field attendance management**: Users can also perform field clock-in when working outside or from home. | 1. **Multiple inconsistent MAC addresses**: Users may be marked as field clock-in even when they are within the designated range.
2. **Mobile clock-in only**: Users can only clock in from a mobile device. |
| **Zhidian Bluetooth clock-in** | Suitable for Organizations with a **fixed Work Location** that require users to **enter the Time Clock's Bluetooth detection range** to clock in. | 1. **Supports mobile clock-in**: Users can clock in without waiting in line, improving efficiency.
2. **Anti-cheating**: Users must clock in at a designated Location using a designated device, which effectively prevents cheating. | 1. **Mobile clock-in only**: Users primarily clock in from a mobile device.
2. **High device management cost**: Additional hardware must be purchased. |
| **Time Clock clock-in**
[**Buy DingTalk Time Clock now**](https://dingtalk.tmall.com/?spm=a1zb9.8233112.0.0.56133a88Xv4LF4) | Suitable for Organizations with a **fixed Work Location** that require users to clock in via methods supported by the Time Clock (such as card swipe, fingerprint, or facial recognition). Common in factories, banks, and similar workplaces. | 1. **Anti-cheating**: Users must clock in at a designated Location using a designated device, which effectively prevents cheating. | 1. **Limited use cases and low clock-in efficiency**: Mobile clock-in is not supported, so users must wait in line during peak hours.
2. **Field clock-in not supported**: Users must be physically present at the Time Clock's Installation Location to clock in.
3. **High device management cost**: Additional hardware must be purchased. |
## 3. FAQ
To work around the fact that the Time Clock does not support field clock-in, Organizations can use location-based clock-in and Time Clock clock-in together to cover both on-site and field attendance. Go to **DingTalk mobile app > Workbench > Attendance > Settings > Global Settings > Add attendance group**, or edit an existing attendance group, then go to **Clock-in method > Location-based clock-in** and turn **Location-based clock-in** On.