Shenzhen Zuomeng Technology S28 Ultra
Smartphone · model S28 Ultra, iFone 18 Pro Maxi · on the market since 16 October 2026
- Battery per charge54 hbetter than 42%
- Battery lifespan1,000 charge cyclesbetter than 51%
- Drop resistance98better than 20%
- Repairability3/5better than 17%
- Software updates5 yearsbetter than 40%
The score averages five percentiles from the official label values. It is our own summary, not an EU rating. How it works
Energy label values
| Energy efficiency class | C on the A–G scale |
|---|---|
| Device | smartphone |
| Operating system | Android |
| Battery endurance per charge | 54 h |
| Battery lasts at least | 1,000 charge cycles |
| Battery capacity | 8,000 mAh |
| Drops survived without defect | 98 |
| Drop reliability class | D |
| Repairability index | 3/5 |
| Repairability class | C |
| OS updates for at least | 5 years |
| Dust & water protection | IP64 |
| Scratch resistance | Mohs 5 |
| User-replaceable battery | No |
| Foldable | No |
| Charging power | 10 W |
| Charging port | USB-C |
| Guarantee declared by the supplier | 1 year |
Lifespan & repair
Spare parts
Under EU ecodesign rules (Regulation (EU) 2023/1670), key spare parts must stay available for at least 7 years after the last unit of the model is placed on the market.
Guarantee
The supplier declares a guarantee of 1 year on the EU register. Your statutory rights in the EU are at least 2 years.
Software updates
Operating-system updates for at least 5 years after the end of placement on the market.
Repair information
Registration history
- 16 October 2026 First published in the EU energy label register (EPREL)
- 16 October 2026 Placed on the EU market
Model numbers on this page
These 2 model numbers are registered by Shenzhen Zuomeng Technology with identical energy label values, dimensions and installation type (usually colour or market variants).
S28 UltraiFone 18 Pro Maxi
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Source: EU energy label register (EPREL), registration 2880393, 2880403. Values are as declared by the supplier. YearlyCost is not affiliated with the European Commission or Shenzhen Zuomeng Technology.