Life & fun · alternatives · 2026

24 alternatives to Estream: Portable Water Power Generator

Converts water into stored energy.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Estream: Portable Water Power Generator launched in 2016; newer entries below may have overtaken it.

1. 1
   Estream: A portable water power generator fits into backpack▲4

   Estream converts any type of moving water into stored energy

   2016 · its alternatives →

2. 2
   Estream: A Portable Water Power Generator Fits into Your Backpack▲6

   Charge your mobile devices with water energy.

   2016 · its alternatives →

3. 3OS
   Open-source atmospheric water generator – first lab reports▲62

   2016 · openawg.github.io · its alternatives →

4. 4
   IOON▲245

   Smart device that turns water into sanitizer.

   2020 · its alternatives →

5. 5
   Pryme Vessyl▲92

   Smart cup that tracks water intake

   2015 · its alternatives →

6. 6
   Water-Gen▲69

   Drinking Water. Anywhere.

   2014 · its alternatives →

7. 7
   Ecoisme 2.0▲109

   A smart energy monitor for your home appliances

   2017 · its alternatives →

8. 8
   Light Water▲86

   The best portable water purifier system for the outdoors

   2019 · its alternatives →

9. 9
   Aura Water: Private Hydration▲122

   Offline water tracker with a private AI hydration coach

   Mar 2026 · locikit.com · its alternatives →

10. 10
    Storing Energy & Gaining Momentum on Kickstarter - AOTK128▲60

    Orison, a plug-and-play home energy storage device

    2016 · its alternatives →

11. 11
    Interactive real-time chemistry and fluids: water electrolysis▲99

    2021 · cselab.github.io · its alternatives →

12. 12
    Spout Watermaker▲127

    Smallest atmospheric water generator

    2023 · spoutwater.com · its alternatives →

13. 13
    MeterHero▲87

    Track your utilities. Conserve water and energy

    2015 · its alternatives →

14. 14
    IOON 1.0 RTO▲33

    The device that turns water into sanitizer. Again.

    2021 · its alternatives →

15. 15
    PowerPot▲105

    Charge your mobile devices with just heat and water.

    2015 · its alternatives →

16. 16MT
    MeterHero – The Best Way to Track and Share Water and Energy Data▲7

    2014 · meterhero.com · its alternatives →

17. 17
    The PowerPot▲54

    Portable thermoelectric generator powers your devices

    2014 · its alternatives →

18. 18
    Waterpebble▲71

    Your little water saver

    2014 · its alternatives →

19. 19
    Pavegen▲99

    Harvesting kinetic energy from every footstep.

    2014 · its alternatives →

20. 20
    Omate Rise▲83

    Standalone water-resistant smartwatch

    2015 · its alternatives →

21. 21
    OaSense▲106

    A smart shower head with a sensor

    2016 · its alternatives →

22. 22
    ecobud▲80

    A portable water filter and bottle

    2015 · its alternatives →

23. 23
    Ecoisme▲18

    Intelligent Energy Monitoring System for Home

    2015 · its alternatives →

24. 24
    FLUID (Kickstarter)▲17

    Learning water meter with Mint-like usage tracking

    2015 · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →