Samsung Galaxy S 4 Review - Part 1
by Brian Klug on April 24, 2013 12:01 AM ESTCamera on SGS4
On the camera side Samsung is in an interesting position. The industry trend is overwhelmingly to go to more pixels and push the megapixel count up from 8 MP where most flagships sat last year to around 13 where they will sit this year. Samsung has to push that number to keep itself in a defensible and marketable position and at the same time deliver a camera experience that’s better than the previous year.
I published a table in the One review with the camera specifications from the previous generation. I’ve filled this in with confirmed information from the SGS4 review unit I have been taking samples with. With SGS4 Samsung does make some pretty considerable improvements, many of which undo some of the regressions that I described with SGS3. Focal length is now quite a bit longer, from the very wide SGS3 which was around 26mm in 35mm effective numbers, to 31 mm. This is a notable difference if you’re shooting with the two side by side, the SGS3 was always shockingly wide for a rear facing camera.
| Smartphone Camera Comparison - 2013 | |||||||
| HTC One | Samsung Galaxy S 2 | Samsung Galaxy S 3 | Samsung Galaxy S 4 | ||||
| Front Camera | 2.1MP | 2MP | 1.9MP | 2MP | |||
| Front Camera - CMOS |
OV2722 (1.4µm, 1/5.8") |
- |
S5K6A3 (1.75µm, 1/6") |
S5K6B2 (1.34µm, 1/6") |
|||
| Front Camera - Focal Length | ~1.59mm | 2.73mm | 2.7mm | 1.85mm | |||
| Front Camera - Max Aperture | F/2.0 | F/2.8 | F/2.8 | F/2.4 | |||
| Rear Camera | 4MP | 8MP | 8MP | 13MP | |||
| Rear Camera - CMOS |
ST VD6869 (2.0 µm, 1/3") |
S5K3H2YX (1.4µm 1/3.2") |
Sony/Samsung (1.4µm, ~1/3") |
IMX091PQ (1.12µm, 1/3.06") |
|||
| Rear Camera - Focal Length |
3.82mm (28mm eff) |
3.97mm (30mm eff) |
3.7mm (~26 mm eff) |
4.2mm (31 mm eff) |
|||
| Rear Camera - Max Aperture | F/2.0 | F/2.65 | F/2.6 | F/2.2 | |||
At the same time, F-number has improved dramatically, from the F/2.6 or 2.65 (I’ve seen both at times) aperture on the SGS3 to a much faster F/2.2. This dramatically improves the light collection abilities of the camera, by essentially a half stop. It’s difficult optical design to both keep the module thin enough to fit in the device without creating a huge bump (there’s a camera bump on SGS4, it’s there), increase focal length, improve F/#, and improve MTF for a better sensor all at the same time.
On the rear facing camera we see a Sony CMOS who continues to dominate the space, this time with an IMX091PQ sensor. On the front we Samsung’s own sensor, the S5K6B2 get used. Samsung also continues to go with a dedicated Fujitsu ISP inside the SGS4, this time it’s a new M10MO family which there isn’t a whole lot of information about. I suspect this continues to be done to mitigate the differences in SoC ISP between the APQ8064ab variant and Exynos 5 version and make tuning easier on Samsung’s camera team.
Imaging is increasingly a key differentiator for smartphones since it’s that device you always have on your person to take images with. For SGS4 camera is more of an emphasis this time around than it was with SGS3, which largely kept everything the same and just added software features. SGS4 brings better hardware and additional software features to do something with the hardware.
Outdoors in bright light the increased spatial resolution afforded from going from 8 MP to 13 MP helps. Samsung still does a lot of sharpening and there are halos around a ton of different features if you know where to look, but that’s the tuning they have opted for. I suspect we still are outresolving the sensor here, but I’m impressed with what I see with enough light. I took a lot of photos side by side with SGS3 and find SGS4 a notable improvement, but I’m not sure whether that’s just more damning commentary on SGS3 than anything else. I haven’t had time to put together many side by sides with buttons yet. I’ve been shooting with the HTC One on −2 sharpness since I prefer it that way, note that I accidentally left it this way with when making comparisons here since that’s still my daily driver until I can get an AT&T or T-Mobile SGS4 to use.
 |
| SGS4: 1/950s, ISO 50 |
In lower light unsurprisingly we see the SGS4 offer better results than the SGS3 but still not quite as good as the HTC One. Samsung recently introduced low light shot on the SGS3 and Note 2, this feature carries over to the SGS4 but gets renamed back to Night Mode, even though behavior appears superficially to be the same. The SGS4 also introduces an auto night mode toggle, although this ships by default turned off. The mode automatically switches on night mode when it senses that you’re going to underexpose using the auto presets, I would advise basically leaving this on all the time. Unfortunately night mode introduces huge shot to shot latency that seems to be on the order of seconds — tap the button, capture runs, then there’s a progress bar that pops up while multiple exposures are ostensibly recombined into one image. You also have to be exceptionally steady to get an image without blur since it appears that this mode takes multiple images to get to the end goal — a better exposed image without tons of noise.
 |
| SGS4: 1/15s, ISO 1000 |
In the end there’s really no free lunch for anyone — you can temporally oversample (Samsung low light shot, or longer exposures with OIS like Nokia), or increase the size of your sampling area (larger pixels a-la HTC One), or do nothing and just give up unless you’re in a bright outdoor setting.
Samsung has introduced a bunch of new photo modes in the software on the SGS4, a number of which are actually pretty functional and awesome. There's the ability to create animated gifs from right in the camera, for example, where users paint a mask around the region they want animated from a short capture. This is essentially the same as Nokia's cinemagraph Lens from the Lumia 920, but it's still quite cool.
There's also dual camera, which lets you include a small overlay of the front facing camera atop the rear facing camera image. It initially struck me as a bit gimmicky but actually can be hilariously fun to share your face atop images to friends. It is also quite possibly the stuff of nightmares.
Panoramas on the SGS4 also are nicely put together and integrate continuously rather than get combined from a number of discrete images. The result is quite nice.
The user interface on SGS4 is a departure from the interface which has been present on previous Galaxy smartphones, and instead takes much UI/UX from the Galaxy Camera. Gone are the customizable toggles on the left side, instead options are in an expandable menu at the very top, and then another separate window. I got used to it pretty quickly but do miss the ability to customize the quick settings buttons on the left side and used to think that Samsung had the most powerful camera interface around. Things are moved around generally in a logical fashion however and I can understand how much this works to make transitioning between Galaxy Camera and SGS4 easy.
Video
When it comes to video, the SGS4 is records 1080p30 video at 17 Mbps H.264 High Profile.
I've done the usual thing and uploaded a sample to YouTube as well as our own servers for your inspection.
Video quality looks really nice and sharp on SGS4 from what I can tell by default. Anti shake (EIS in this case) is disabled out of the box, enabling it pops up a box warning you that stills captured during video record will be a different field of view.
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Crocography - Thursday, April 25, 2013 - link
I really wish Anadtech would start comparing all of these to the Nokia 920.GTRagnarok - Thursday, April 25, 2013 - link
What's part 2 going to be? Just the Exynos version?theduckofdeath - Thursday, April 25, 2013 - link
"he weight argument is an interesting one. If you compare the all-plastic Galaxy S 4 to the all-metal HTC One, there's a difference of 13 grams."The Samsung also has a much larger battery, which is the most dense and weight-adding element in a phone. It also has a larger display. So, the real benefit is a lot more than 13 grams.
scaramoosh - Thursday, April 25, 2013 - link
http://www.displaymate.com/Galaxy_S4_ShootOut_1.ht...What's that? The GS4 actually has an amazing screen?
risa2000 - Thursday, April 25, 2013 - link
My Galaxy Note 2 with Samsung charger charges in around two and half hour since the beginning until now (6 months). Could it be because of different power voltage (as I am in Europe on 230 V AC)?jleach1 - Thursday, April 25, 2013 - link
Why the heck would you call the inclusion of a mucroSD slot "disappointing"? What geek in their right mind would say that?And who in their right mind would pay $100 for an extra 16gb of NAND, when we all know it costs pennies, and we can buy a 32gb Class 10 card for $20?
ziggybiggunz - Thursday, April 25, 2013 - link
Its $100 more for an extra 32gb on the HTC actually, for a total of 64gbziggybiggunz - Thursday, April 25, 2013 - link
HTC One buyers have become a very vicious cohort. Some poor chap on youtube had to remove his voice and disable comment because be was getting death threats for disliking the One. Every single comparison video on youtube is loaded with " fuck you for liking the S4", "Samsung paid you to like it, you fuck", "fuck plastics", "fuck Samsung"....."fucking magnest, how do they work". These are the same people who not to long ago where sucking Samsungs dick over the GS2, Gnex, and the Note 1/2. Chill out. HTC One is good phone, but dont start shitting over samsung all of a sudden because someone came along and gave you a metal body. Was the pain of having your hipster friends making fun of your plastic phone becoming that unbearable? Before the One came out, Android users prime ammunition for iPhone users was the removable battery and expansion option, and all the "gimicks" of Samsung flagships. So samsung gave you that again, but used polycorbonate, so its chopped liver now? As soon as someone says anything good about the S4, you hear..."nope, its not aluminum like the One". Give me a break....remember who your daddy iscryosx - Sunday, April 28, 2013 - link
The HTC One deserves the praise but the extremists are kind of getting out of hand...bhima - Thursday, April 25, 2013 - link
Plastic is sort of bleh when it comes to this price bracket, but I feel Brian and Anand dismiss the desire for a removable battery too easily when comparing this phone to say the HTC One. On one hand, they say the removable battery isn't an issue because you upgrade your phone in 2 years (its implied), but on the other hand, they rightly make the point that we will most likely be buying these phones like how we buy computers in the near future due to carriers moving away from contracts. If this is the case, and we will be shelling out full retail, I would assume people would start to buy their phone like a computer and want to keep it LONGER than 2 years because they don't want to drop $300+ dollars on a new phone.Hell, the HTC One or the S4 are both such powerful phones that they could easily last much longer than 2 years, but the S4 is the only one that can actually last past this point... whereas the HTC One will be bricked due to a dying battery. I just find it strange that they had such great insight on how we will look at purchasing phones in the future without adding the foresight of battery concerns due to people keeping their phones longer.