ZKTeco K40 vs F18 vs F22: Which to Buy and What It Costs in Bangladesh
ZKTeco K40, F18 and F22 compared: Bangladesh street prices, capacity, battery and Wi-Fi, and which model suits a small office or a garment factory gate.
At the time of writing, the ZKTeco K40 sells in Bangladesh for roughly Tk 6,400 to Tk 8,500, the F22 for about Tk 10,500 to Tk 12,000, and the F18 for about Tk 10,800 to Tk 12,500. The K40 is an attendance clock with a built-in battery. The F18 and F22 are door access terminals that also record attendance. Which one you should buy depends less on the price gap than on whether the device is opening a door, how many people punch on it, and how often you collect the data.
What each model is built for
K40 is a desk or wall attendance terminal. It has a 2.8-inch screen, a physical keypad and a built-in backup battery, so it keeps recording during load-shedding. It can trigger a simple door lock, but that is a side feature.
F18 is a fingerprint and card access control terminal. It is made to sit beside a door and drive an electric lock, with inputs for a door sensor, exit button, alarm and doorbell. It has no built-in battery.
F22 is a slimmer access terminal (under 2 cm thick) with touch keys and built-in Wi-Fi. It does the same door job as the F18 and is the only one of the three that joins a wireless network as standard.
Specifications side by side
These figures come from ZKTeco's own pages and datasheets where available, and from Bangladeshi seller listings for the K40. ZKTeco ships several variants of each model, so read the label on the box before you pay.
Feature | K40 | F18 | F22 |
|---|---|---|---|
Main purpose | Time attendance | Door access + attendance | Door access + attendance |
Fingerprint templates | 3,000 as listed locally | 3,000 | 3,000 |
Cards | 3,000 (card reader is an option) | 5,000 to 10,000 depending on the datasheet | 5,000 (optional) |
Punch records stored | 100,000 as listed locally | 30,000 | 30,000 |
Built-in battery | Yes, 2,000 mAh | No (external backup optional) | No |
Wi-Fi | No | No | Yes |
Wired communication | TCP/IP, USB host | TCP/IP, RS232/485, USB host | TCP/IP, RS232/485, USB |
Access control | Basic: lock and exit button | Lock, door sensor, exit button, alarm, doorbell, Wiegand in/out, anti-passback | Lock, door sensor, exit button, Wiegand in/out, anti-passback |
Street price (Tk) | 6,400 - 8,500 | 10,800 - 12,500 | 10,500 - 12,000 |
Listings disagree in places. Some overseas pages show a K40 with only 1,000 users, and one local marketplace gives the F22 100,000 logs where ZKTeco says 30,000. Trust the manufacturer and the device's own system information screen.
What they cost in Bangladesh
Prices below were checked in early October 2026. They move with the dollar rate and import duty, so confirm with the seller on the day.
K40: Tk 6,900 at Star Tech and Tk 6,700 at another Dhaka retailer. Marketplace sellers on BDStall ranged from Tk 6,400 to Tk 8,500.
F22: Tk 11,500 at Star Tech. BDStall sellers ranged from Tk 10,499 to Tk 12,000.
F18: Tk 12,500 at Star Tech. BDStall sellers ranged from Tk 10,790 to Tk 12,500.
The device is not the whole bill. Sellers commonly quote Tk 2,000 to Tk 4,000 for installation, more if a door lock is wired in. So a small office that buys one K40 at Tk 6,900 and pays Tk 3,000 for installation spends about Tk 9,900. A door also needs a lock, exit button, power supply and cabling, so ask for an itemised quotation.
Small office or factory gate
Small office, 10 to 100 people. If you only need attendance, the K40 is the sensible buy. It is the cheapest of the three, stores the most punches and survives power cuts on its own battery. If the device must also open the office door, choose the F22 where pulling a network cable is awkward, or the F18 where a cable is already there and you want the fuller set of door inputs.
Garment factory gate. Do the arithmetic before you buy. Take a floor of 1,200 workers who punch in, out for lunch, back in and out again:
1,200 workers x 4 punches = 4,800 punches a day
A 30,000-record device (F18 or F22) fills in about 6 working days
A 100,000-record device (K40 as listed) fills in about 20 working days
A full log means lost or overwritten punches, depending on the settings. So an F18 or F22 at a factory gate only works if software pulls the punches every day. Template capacity is the other limit: 3,000 templates is 1,500 workers if you enrol two fingers each, which you should.
Why fingerprints fail on the factory floor
All three models read fingerprints with an optical sensor. That works well for office staff. It works less well for people whose hands are their tools. Washing, dyeing, cutting and finishing wear down the ridges on a fingertip. Chemicals, wet hands, dust, cuts and henna make it worse. The worker presses three or four times, the queue builds, and the timekeeper starts entering punches by hand. Manual punches are exactly what auditors question.
On a fingerprint-only device, enrol two fingers from different hands, re-enrol workers whose prints fail often, and keep the sensor glass clean.
If a large share of your workers are in wet or abrasive sections, a face recognition terminal is the better tool. It is touch-free and faster through a queue. It also costs more than any of these three. Our guide to choosing a ZKTeco device for a garment factory covers that choice.
Warranty and counterfeit cautions
Warranty terms vary by seller. Get the period and what it covers in writing on the invoice. Ask who does the repair and how long it takes.
Be wary of a price far below the range above. Clones, refurbished units and grey imports are sold under the ZKTeco name. They may look identical and still fail to connect to standard software.
Check the box and the device. The model and serial number on the box label should match the sticker on the unit and the serial shown in the device's system information menu.
Test before you pay in full. Enrol a finger, punch, then pull the record over the network with the software you plan to use.
Frequently asked questions
What is the ZKTeco K40 price in Bangladesh? About Tk 6,400 to Tk 8,500 at the time of writing, with established retailers around Tk 6,700 to Tk 6,900. Installation is usually extra.
Does the K40 have Wi-Fi? The standard K40 sold locally connects by network cable (TCP/IP) and USB flash drive. Of these three models, only the F22 has Wi-Fi built in.
Can these devices push punches to cloud or payroll software automatically? All three can be read over the network by software that pulls data from them. Automatic push (ADMS) depends on the firmware variant, and we could not confirm it for every unit sold locally. If you need push, ask the seller to show the cloud server setting in the device menu before you buy.
Where Octapus fits
A device only records who touched it and when. Turning those punches into shifts, overtime and a wage sheet is the software's job. Octa Punch is our biometric attendance and payroll system for garment factories. It is ZKTeco compatible, runs BDT payroll and produces Bangla PDF pay slips. Setup, device integration and training are included.
If punches are already going missing between device and software, see our note on ZKTeco attendance sync problems.
TopicAttendance
