Brand comparison · from catalogue data
ZKONG vs SUNMI
ZKONG (4 models) versus SUNMI (2 models): product range, communications, ingress protection, battery life, price band and sector coverage side by side, from sourced catalogue data.
A manufacturer spreading quickly with a BLE-based, low-infrastructure-cost solution. The Blade series is positioned across fourteen sizes from 1.8" to 10.2" with body thickness of 9–13.6 mm, and the Shield series with its high-durability plastic body and freezer variants (ZK21SF, ZK26SF). Model codes and resolutions are published openly on the manufacturer's site.
SUNMI China · Tier-2 · Specialist · 2 modelsA Chinese manufacturer known for smart POS terminals and retail IoT hardware; its ESL line is offered under the SL series. Market reports mention it among Chinese manufacturers growing both domestically and in exports. It publishes open ESL OpenAPI documentation for developers.
| Criterion | ZKONG | SUNMI |
|---|---|---|
| Models in catalogue | 4 | 2 |
| Display size range | 2,13" – 7,5" | 2,13" – 2,6" |
| Colour capabilities | 3 colours, 4 colours, 2 colours | 3 colours |
| Communications | Bluetooth LE 5.x | Bluetooth LE 5.x |
| Ingress protection | IPXX | IP54 |
| Claimed battery life | 4 yr – 5 yr | 5 yr |
| Freezer-class model | Yes | No |
| Share of models with NFC | %100 | %100 |
| LED indicator | Yes | No |
| Price bands | Economy, Upper, Mid | Economy |
| Fully verified records | %0 | %0 |
| Tier | Tier-2 · Specialist | Tier-2 · Specialist |
| Headquarters | Hangzhou, China · 2015 | Shanghai, China · 2013 |
| Protocol / platform | Bluetooth LE 5.0 (encryption optional) · ZKONG Cloud | 2.4 GHz + BLE, NFC supported · SUNMI Cloud · açık ESL OpenAPI |
| Presence in Türkiye | A Turkish-language product site exists (zkong.com/tr, tr.zkongesl.com); no named Türkiye solution partner identified | Available through POS hardware distributors |
Highlighted cells only mark numeric breadth (more models, longer battery, higher verification); they do not mean "better". Estimated fields are flagged on product pages.
Sectors both target
Only ZKONG
Only SUNMI
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ZKONG
Strengths
- Low total cost of ownership
- Simple, inexpensive infrastructure over BLE
- A very wide size range and published per-model resolution tables
- Short lead times
Watch-outs
- Bulk update time may lengthen in dense label environments — measure it in the pilot
- The protection rating 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
SUNMI
Strengths
- The option to buy POS terminal and ESL from the same manufacturer — single-source integration
- Publicly available ESL OpenAPI documentation
- NFC-enabled three-colour displays and a visual template editor
- A widespread dealer network in Europe
Watch-outs
- Per-model technical datasheets are not public
- ESL is not the company's main product line — roadmap priority sits on the POS side
- Freezer and large-format options are limited