Brand comparison
Differences between Sertag and ZKONG
If your shortlist has come down to these two, the table below puts everything recorded in the catalogue side by side. We do not declare a winner — which difference matters depends on your store's scenario, and we do not know that scenario.
Measurable differences
Screen size range
Colour capability
Communication
Battery life (years)
Cold-rated models
IP protection class
Price band
Models with NFC
Full comparison
| Sertag | ZKONG | |
|---|---|---|
| Models in catalogue | 2 | 4 |
| Screen size range | 2.9″ – 7.5″ | 2.13″ – 7.5″ |
| Colour capability | 3 colours | 2 colours, 3 colours, 4 colours |
| Communication | Sub-1 GHz (433/868 MHz) | Bluetooth LE 5.x |
| Battery life (years) | 5 | 4 – 5 |
| Cold-rated models | 0 / 2 | 1 / 4 |
| IP protection class | IP54 | IP5X, IP63 |
| Price band | Economy, Upper | Economy, Mid, Upper |
| Mains-powered models | 0 / 2 | 0 / 4 |
| Models with NFC | 0 / 2 | 4 / 4 |
| Market position | Tier-3 · Value | Tier-2 · Specialist |
| Headquarters | Shenzhen, Çin | Hangzhou, Çin |
| Founded | 2011 | 2015 |
| Management platform | Sertag ESL System | ZKONG Cloud |
| Sells in Türkiye | — | — |
Sertag
A manufacturer specialising in sub-1 GHz communication. Thanks to the high penetration of the lower frequency, it covers a wide area with fewer access points in environments dense with metal shelving and walls. Note: the manufacturer's site was unreachable during the 2026-08 verification round; the records rest on secondary sources.
Strengths
- Wide coverage with a low access point count thanks to sub-1 GHz
- Advantageous in warehouses and industrial facilities
- Reasonable infrastructure and hardware cost
Watch-outs
- Low bandwidth - bulk updates are slow
- Limited variety in colour and large-format models
ZKONG
A manufacturer spreading quickly with a BLE-based, low-infrastructure-cost solution. The Blade series is positioned across fourteen sizes between 1.8 and 10.2 inches with body thicknesses of 9-13.6 mm, and the Shield series with its high-resistance plastic housing and freezer variants (ZK21SF, ZK26SF). Model codes and resolutions are published openly on the manufacturer's site.
Strengths
- A low total cost of ownership
- Simple and inexpensive infrastructure through BLE
- A very wide size range and resolution tables published model by model
- Short lead times
Watch-outs
- Bulk update time may lengthen in dense label environments - measure it in the pilot
- Protection class is IP63 on most models; for wet areas choose the IP66 variant specifically
- Battery life figures are not published publicly
- Enterprise SLA and long-term support level vary by partner
How solid is this comparison?
18 fields are estimated across Sertag records, with 2 sources attached. For ZKONG: 18 estimated fields and 6 sources. Estimated fields are derived from class averages and are marked individually on product pages; where the two brands differ sharply in how much is estimated, the comparison is unequal by the same degree.