Register Guidelines E-Books Search Today's Posts Mark Forums Read

Go Back   MobileRead Forums > E-Book Readers > Which one should I buy?

Notices

Reply
 
Thread Tools Search this Thread
Old 06-02-2021, 11:17 AM   #1
ersott
Evangelist
ersott ought to be getting tired of karma fortunes by now.ersott ought to be getting tired of karma fortunes by now.ersott ought to be getting tired of karma fortunes by now.ersott ought to be getting tired of karma fortunes by now.ersott ought to be getting tired of karma fortunes by now.ersott ought to be getting tired of karma fortunes by now.ersott ought to be getting tired of karma fortunes by now.ersott ought to be getting tired of karma fortunes by now.ersott ought to be getting tired of karma fortunes by now.ersott ought to be getting tired of karma fortunes by now.ersott ought to be getting tired of karma fortunes by now.
 
Posts: 413
Karma: 650430
Join Date: Apr 2010
Device: Kindle paperwhite2, Ipad Air, Kobo Aura H2o
Forma vs Oasis, better contrast?

Well, that’s the question, which of this devices has better screen? Contrast is most important for me
ersott is offline   Reply With Quote
Old 06-02-2021, 12:44 PM   #2
ottischwenk
Wizard
ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.
 
ottischwenk's Avatar
 
Posts: 2,866
Karma: 3930097
Join Date: Sep 2012
Location: Salzburg AT
Device: Boox 6/14, Like-/Meebook 2/8, Tolino 1/10, Kobo 0/5, Kindle 0/3
Quote:
Originally Posted by ersott View Post
Well, that’s the question, which of this devices has better screen? Contrast is most important for me
I don't know the Oasis, but I do know that it uses a glass screen, while the Forma relies on Mobius technology.
All my devices with glass screen have better contrast than those with Mobius.
But the Forma has other advantages like weight, no (books) dependence on Amazon etc.
ottischwenk is offline   Reply With Quote
Advert
Old 06-02-2021, 01:17 PM   #3
hobnail
Running with scissors
hobnail ought to be getting tired of karma fortunes by now.hobnail ought to be getting tired of karma fortunes by now.hobnail ought to be getting tired of karma fortunes by now.hobnail ought to be getting tired of karma fortunes by now.hobnail ought to be getting tired of karma fortunes by now.hobnail ought to be getting tired of karma fortunes by now.hobnail ought to be getting tired of karma fortunes by now.hobnail ought to be getting tired of karma fortunes by now.hobnail ought to be getting tired of karma fortunes by now.hobnail ought to be getting tired of karma fortunes by now.hobnail ought to be getting tired of karma fortunes by now.
 
Posts: 1,552
Karma: 14325282
Join Date: Nov 2019
Device: none
I'd say that the Oasis has slightly better contrast, but it's not enough to outweigh the advantages of the Kobo. The user interface of the Kobo is far superior to the Kindle's. The Kobo is also definitely easier to hold with the side slightly angled up where the page turn buttons are. The metal of the Kindle makes it cold and unpleasant for me to hold (or maybe it's the glass since I do have a cover on it). And the additional screen size on the Kobo, even though it's not a lot, definitely makes a difference.

I still buy my books from Amazon and use Calibre to convert them to epub.

Last edited by hobnail; 06-02-2021 at 01:22 PM.
hobnail is offline   Reply With Quote
Old 06-02-2021, 01:45 PM   #4
ersott
Evangelist
ersott ought to be getting tired of karma fortunes by now.ersott ought to be getting tired of karma fortunes by now.ersott ought to be getting tired of karma fortunes by now.ersott ought to be getting tired of karma fortunes by now.ersott ought to be getting tired of karma fortunes by now.ersott ought to be getting tired of karma fortunes by now.ersott ought to be getting tired of karma fortunes by now.ersott ought to be getting tired of karma fortunes by now.ersott ought to be getting tired of karma fortunes by now.ersott ought to be getting tired of karma fortunes by now.ersott ought to be getting tired of karma fortunes by now.
 
Posts: 413
Karma: 650430
Join Date: Apr 2010
Device: Kindle paperwhite2, Ipad Air, Kobo Aura H2o
Thanks for the answer, I’ll buy a forma and Iwill see
ersott is offline   Reply With Quote
Old 06-02-2021, 03:04 PM   #5
DNSB
Bibliophagist
DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.
 
DNSB's Avatar
 
Posts: 34,236
Karma: 144198474
Join Date: Jul 2010
Location: Vancouver
Device: Kobo Sage, Forma, Clara HD, Lenovo M8 FHD, Paperwhite 4, Tolino epos
A Mobius screen has a plastic substrate which is behind the opaque eInk display (if you look at a cross-section of an eInk display, the top electrode is labelled as transparent while the bottom electrode is not and the eInk capsules/cups are themselves opaque). So a claim that having a Mobius display could affect display contrast is a bit hard to understand. Much like @otisschwenk's agreement that Mobius displays are lumpy, the claim seems to lack any visible means of support. This is saying nothing of the layers above the display (touch, protective top layer, etc.) which can affect the display.

Having a Forma myself and having compared it with an Oasis, I did not notice any difference in the display contrast with or without the frontlight on.

As to why Mobius displays are superior, check this video of a Forma undergoing a twist test.


Last edited by DNSB; 06-02-2021 at 03:07 PM.
DNSB is offline   Reply With Quote
Advert
Old 06-02-2021, 03:45 PM   #6
ottischwenk
Wizard
ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.
 
ottischwenk's Avatar
 
Posts: 2,866
Karma: 3930097
Join Date: Sep 2012
Location: Salzburg AT
Device: Boox 6/14, Like-/Meebook 2/8, Tolino 1/10, Kobo 0/5, Kindle 0/3
Quote:
Originally Posted by DNSB View Post
A Mobius screen has a plastic substrate which is behind the opaque eInk display (if you look at a cross-section of an eInk display, the top electrode is labelled as transparent while the bottom electrode is not and the eInk capsules/cups are themselves opaque). So a claim that having a Mobius display could affect display contrast is a bit hard to understand. Much like @otisschwenk's agreement that Mobius displays are lumpy, the claim seems to lack any visible means of support. This is saying nothing of the layers above the display (touch, protective top layer, etc.) which can affect the display.
Only an idiot would connect a Mobius display to an upper glass layer, which then needs the same support in terms of stability as a glass display.
Mobius displays are always produced with plastic outer layers, which are far inferior to glass in terms of transparency.
And if you claim that your Forma is as sharp and contrasty as your Kindle, then you're not seeing well, or .....
ottischwenk is offline   Reply With Quote
Old 06-02-2021, 05:04 PM   #7
John F
Grand Sorcerer
John F ought to be getting tired of karma fortunes by now.John F ought to be getting tired of karma fortunes by now.John F ought to be getting tired of karma fortunes by now.John F ought to be getting tired of karma fortunes by now.John F ought to be getting tired of karma fortunes by now.John F ought to be getting tired of karma fortunes by now.John F ought to be getting tired of karma fortunes by now.John F ought to be getting tired of karma fortunes by now.John F ought to be getting tired of karma fortunes by now.John F ought to be getting tired of karma fortunes by now.John F ought to be getting tired of karma fortunes by now.
 
Posts: 7,075
Karma: 62739845
Join Date: Feb 2009
Device: Kobo Glo HD
What are some ereaders with an upoer glass disp!ay?
John F is offline   Reply With Quote
Old 06-02-2021, 06:05 PM   #8
JSWolf
Resident Curmudgeon
JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.
 
JSWolf's Avatar
 
Posts: 73,514
Karma: 126422064
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3
One thing to note. The Oasis suffers from the same issue that's plagued Kindle's for a very long time. The problem is that Kindle do not dither images all that well. Kobo does a better job at dithering and you get more detail. Amazon just doesn't care to fix their poor dithering.

Kobo did improve the dithering at some point.
JSWolf is offline   Reply With Quote
Old 06-02-2021, 06:06 PM   #9
JSWolf
Resident Curmudgeon
JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.
 
JSWolf's Avatar
 
Posts: 73,514
Karma: 126422064
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3
Quote:
Originally Posted by John F View Post
What are some ereaders with an upoer glass disp!ay?
I think it's something ottischwenk made up because he doesn't want us to know that he doesn't understand about Mobious displays.
JSWolf is offline   Reply With Quote
Old 06-02-2021, 06:08 PM   #10
JSWolf
Resident Curmudgeon
JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.
 
JSWolf's Avatar
 
Posts: 73,514
Karma: 126422064
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3
Quote:
Originally Posted by DNSB View Post
Having a Forma myself and having compared it with an Oasis, I did not notice any difference in the display contrast with or without the frontlight on.

As to why Mobius displays are superior, check this video of a Forma undergoing a twist test.

GoodEReader compared the Forma to the Oasis and they did say that the background of the Forma was slightly lighter.
JSWolf is offline   Reply With Quote
Old 06-02-2021, 07:26 PM   #11
Pajamaman
Wizard
Pajamaman ought to be getting tired of karma fortunes by now.Pajamaman ought to be getting tired of karma fortunes by now.Pajamaman ought to be getting tired of karma fortunes by now.Pajamaman ought to be getting tired of karma fortunes by now.Pajamaman ought to be getting tired of karma fortunes by now.Pajamaman ought to be getting tired of karma fortunes by now.Pajamaman ought to be getting tired of karma fortunes by now.Pajamaman ought to be getting tired of karma fortunes by now.Pajamaman ought to be getting tired of karma fortunes by now.Pajamaman ought to be getting tired of karma fortunes by now.Pajamaman ought to be getting tired of karma fortunes by now.
 
Pajamaman's Avatar
 
Posts: 2,825
Karma: 10700629
Join Date: May 2016
Location: Canada
Device: Onyx Nova
Quote:
Originally Posted by JSWolf View Post
GoodEReader compared the Forma to the Oasis and they did say that the background of the Forma was slightly lighter.
So you think it's not true, and that forma background is not lighter?
Pajamaman is offline   Reply With Quote
Old 06-02-2021, 07:30 PM   #12
John F
Grand Sorcerer
John F ought to be getting tired of karma fortunes by now.John F ought to be getting tired of karma fortunes by now.John F ought to be getting tired of karma fortunes by now.John F ought to be getting tired of karma fortunes by now.John F ought to be getting tired of karma fortunes by now.John F ought to be getting tired of karma fortunes by now.John F ought to be getting tired of karma fortunes by now.John F ought to be getting tired of karma fortunes by now.John F ought to be getting tired of karma fortunes by now.John F ought to be getting tired of karma fortunes by now.John F ought to be getting tired of karma fortunes by now.
 
Posts: 7,075
Karma: 62739845
Join Date: Feb 2009
Device: Kobo Glo HD
Quote:
Originally Posted by JSWolf View Post
I think it's something ottischwenk made up because he doesn't want us to know that he doesn't understand about Mobious displays.
Regardless, I would still like some examples of ereaders with a glass screen, i.e. the upper screen, i.e. not the substrate.

Thanks
John F is offline   Reply With Quote
Old 06-02-2021, 08:01 PM   #13
DNSB
Bibliophagist
DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.
 
DNSB's Avatar
 
Posts: 34,236
Karma: 144198474
Join Date: Jul 2010
Location: Vancouver
Device: Kobo Sage, Forma, Clara HD, Lenovo M8 FHD, Paperwhite 4, Tolino epos
Quote:
Originally Posted by ottischwenk View Post
Only an idiot would connect a Mobius display to an upper glass layer, which then needs the same support in terms of stability as a glass display.
Mobius displays are always produced with plastic outer layers, which are far inferior to glass in terms of transparency.
And if you claim that your Forma is as sharp and contrasty as your Kindle, then you're not seeing well, or .....
@Otisschwenk, try to maintain at least minimal contact with reality. Or possibly post a link to eInk's site supporting your claim. As near as I can tell from what I have read on eInk's site and elsewhere, the outer layers have nothing to do with the substrate.

To quote from eInk's site:
Quote:
For applications such as cell phones or hand-held devices, the use of a plastic TFT can be augmented by a layer of unbreakable glass on the front of the display to give stiffness to a device which requires significant touch interaction, but still provides an increased ruggedness. In these types of devices the TFT itself is often the component that fails when dropped, rather than the top plane glass. A plastic TFT can significantly reduce display failure due to those drops.
To quote from a review of the Boox Note 3:
Quote:
The Onyx Boox Note 3 features an E INK Mobius touchscreen display with a resolution of 1872×1404 with 227 PPI. The screen is completely flush with the bezel and is protected by a layer of glass
To quote from Boox's site:
Quote:
The Mobius flexible screen with AG glass flat cover-lens can render a comfortable writing feeling and glare-free view.
There multiple other spots on eInk's site where the same type of statements are made and several manufacturer's whose sites claim a glass front layer on an eInk Mobius screen. I can't find one that matches your claim that a Mobius display needs to be all plastic.

To quote from Mythbusters:
Click image for larger version

Name:	busted_.jpg
Views:	168
Size:	111.8 KB
ID:	187453
DNSB is offline   Reply With Quote
Old 06-02-2021, 09:15 PM   #14
j.p.s
Grand Sorcerer
j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.
 
Posts: 5,257
Karma: 98507638
Join Date: Apr 2011
Device: pb360
Quote:
Originally Posted by JSWolf View Post
One thing to note. The Oasis suffers from the same issue that's plagued Kindle's for a very long time. The problem is that Kindle do not dither images all that well. Kobo does a better job at dithering and you get more detail. Amazon just doesn't care to fix their poor dithering.
There you go trying to pass off opinion as objective fact again.
j.p.s is offline   Reply With Quote
Old 06-03-2021, 12:50 AM   #15
ottischwenk
Wizard
ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.ottischwenk ought to be getting tired of karma fortunes by now.
 
ottischwenk's Avatar
 
Posts: 2,866
Karma: 3930097
Join Date: Sep 2012
Location: Salzburg AT
Device: Boox 6/14, Like-/Meebook 2/8, Tolino 1/10, Kobo 0/5, Kindle 0/3
Quote:
Originally Posted by JSWolf View Post
I think it's something ottischwenk made up because he doesn't want us to know that he doesn't understand about Mobious displays.
How many times do I have to say that no one can look directly at a Mobius module.
You can only see the outer layers of the screen, the ones in front of the module, and these are less transparent on a Mobius screen than on a glass screen.

In fact, there's a reason why Mobius technology is only used on large screens, and has recently been replaced by glass at 10.3 inches due to new mounting concepts.

But of course, someone who wants to bend their devices must prefer Mobius.

BTW: even Kobo uses Mobius only on the Forma, whose only advantage over the 7.8 inchers is its light weight.
ottischwenk is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Oasis 3, Forma, or Libra? timetochange Which one should I buy? 22 12-17-2020 08:11 PM
Bigger screen Forma vs Oasis 2 jmmcg9 Which one should I buy? 38 06-26-2020 03:57 PM
Kobo Forma or Kindle Oasis? perisiana Which one should I buy? 42 05-12-2020 06:06 AM
Oasis 3 vs. Kobo Forma? Neil Which one should I buy? 4 10-13-2019 01:14 AM
Switch from Kindle Oasis to Kobo Forma? faithbw Which one should I buy? 25 08-08-2019 03:00 PM


All times are GMT -4. The time now is 06:21 AM.


MobileRead.com is a privately owned, operated and funded community.