Work · alternatives · 2026

24 alternatives to Estream: A Portable Water Power Generator Fits into Your Backpack

Charge your mobile devices with water 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: A Portable Water Power Generator Fits into Your Backpack 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: Portable Water Power Generator▲7

   Converts water into stored energy.

   2016 · its alternatives →

3. 3
   RIVER Mobile Power Station & Solar Generator▲72

   A battery that can charge your laptop 10 times over

   2017 · its alternatives →

4. 4
   PowerPot▲105

   Charge your mobile devices with just heat and water.

   2015 · its alternatives →

5. 5
   Pulse▲78

   A portable battery charger with a solar panel

   2014 · its alternatives →

6. 6
   The PowerPot▲54

   Portable thermoelectric generator powers your devices

   2014 · its alternatives →

7. 7
   My JAQ▲87

   Portable charger -- energy from water & salt (pre-launch)

   2015 · its alternatives →

8. 8
   ecobud▲80

   A portable water filter and bottle

   2015 · its alternatives →

9. 9
   Volt▲88

   Portable Charging for Festival-goers

   2014 · its alternatives →

10. 10OS
    Open-source atmospheric water generator – first lab reports▲62

    2016 · openawg.github.io · its alternatives →

11. 11
    Water-Gen▲69

    Drinking Water. Anywhere.

    2014 · its alternatives →

12. 12
    Light Water▲86

    The best portable water purifier system for the outdoors

    2019 · its alternatives →

13. 13
    Pryme Vessyl▲92

    Smart cup that tracks water intake

    2015 · its alternatives →

14. 14
    IOON▲245

    Smart device that turns water into sanitizer.

    2020 · its alternatives →

15. 15
    Aura Water: Private Hydration▲122

    Offline water tracker with a private AI hydration coach

    Mar 2026 · locikit.com · its alternatives →

16. 16
    Omnicharge▲140

    Smart & compact portable power bank

    2016 · its alternatives →

17. 17
    Storing Energy & Gaining Momentum on Kickstarter - AOTK128▲60

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

    2016 · its alternatives →

18. 18
    Waterpebble▲71

    Your little water saver

    2014 · its alternatives →

19. 19
    RAVPower▲125

    High quality power banks,replacement batteries, AC adapters

    2020 · its alternatives →

20. 20
    WaterMinder▲117

    Keep tab and get reminded to drink more water!

    2016 · its alternatives →

21. 21
    Fluxmob Bolt2▲77

    A wall charger and portable battery in one

    2015 · its alternatives →

22. 22
    Lucis 3.0▲76

    Introducing a new series of powerful portable mood lamps

    2018 · its alternatives →

23. 23
    Ecoisme 2.0▲109

    A smart energy monitor for your home appliances

    2017 · its alternatives →

24. 24
    MeterHero▲87

    Track your utilities. Conserve water and energy

    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 →