Spectra pump review – S1 vs M1

This is meant to share with mummy who considering S1 vs M1. This review is by Audrey Yeo, a singapore mummy. 



(Experiment conducted by Drey Drey Yeo)

S1 is a hospital grade pump.
It has a very unique suction where it vibrates ur nipple during suction, triggering your letdown to come faster and also helps to stimulate milk production unlike other pumps which will just pull and release.
It allows you to customize your pumping experience. You can set the suction power and suction duration separately. It is Close System, has a timer(auto off at 30mins) and night light(under handle) to make it easier to pump at night. Has a massage button to help achieve a letdown faster. In-built rechargeable battery which can last around 3hours of pumping.

M1 is a normal usage pump.
It has the same unique vibration suction like s1, just that the vibration is much faster for m1, therefore it might not be noticeable.
It has a Joint suction power/suction duration control, as u increase the suction power, the suction duration will also get longer. It is Close System and will auto switch off at 30mins. Has a massage button to help achieve a letdown faster. In-built rechargeable battery which can last around 1.5 hour of pumping.

Comparison of S1 Vs M1:
S1 is 1.12kg and M1 is at 300g
S1 is much bulkier(C:64cm, H:19cm), M1(C:37.5cm, H:7cm).
S1 battery last longer.
S1 may be able to help achieve more yield due to its unique suction.
S1 is much silent than M1.
S1 has stronger suction power.
M1 empties the breast much faster due to its longer suction duration(lv3,4,5)

S1 is more for serious pumping where your concern is more about increasing yield and also to have a more comfortable pumping experience. Recommended for Home use and Office use.
M1 is very portable due to its size and weight. It can empties the breast much faster due to it’s long suction duration, good for people who need to get pumping done in a short duration. Recommended for pumping on the go or for multi tasking(cooking, playing with kids while pumping).



8 thoughts on “Spectra pump review – S1 vs M1

  1. Hi i already f m1 pump i tested s1 with 1 of d mommy there every time i use i c amazing result. Question is whether 2 buy new set or 2nd hand? New 1 cost me roughyly 750 while 2nd hand bout 480 purchased in mar14. The 2nd hand suction is good bt there is a minor scratches but i f d same scratcjes wit my m1 bcoz i dropped it so i affraid after buying d 2nd hand if n e prob i need 2 fix also need 2 count in d cost of repairing? But new 1 i dun need to worry. Can u help me mommy😁

  2. hi u mention in this blog that s1 is for those who are serious in increasing yield while m1 is empties the breast faster due to longer suction duration. how is this so for s1 to increase yield? i also understand that s1 can set the suction duration longer (cycle) will it achieve the same effect as m1 then? i tried once s1 and i realise the output is 10-20ml lesser than m1 i don’t know if its just that day or s1 doesn’t works for me. what cycle and level would u set for s1.
    would appreciate your advice 🙂

  3. Hi hi
    i m a new mummy and using s1 currently. Will the size of the flanges affect the letdown? And also in what sitting position will b best for pumping as i had a c sec and when i pump on bed my wound hurts. Any suggestions for reference? Thank you. 🙂

    • Hi Grace, Congrats on the new born! Firstly, size of the flanges will definitely affect the letdown. Secondly, pumping is not recommended on the first few weeks after delivery as it will implicate a lot of bf issue later (i.e. block duct, over supply, drop in supply or etc.) May I know why are you pumping now ?

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