4K video recording: Absolutely pointless on such a small display. You can already not see the individual pixels at the screen resolution we have now. Raising it higher increases costs for the LCD panel for little gain.
I haven't spoken of screen resolution but video recording. 4K, when implemented properly, does deliver far superior results. Compare for example the pixel-level detail of the Note 3's 4K framegrab at
http://connect.dpreview.com/post/3690994318/samsung-galaxy-note3-first-look-review , in the "Video" section. 4K is far superior and delivers a lot of additional details.
- OIS (Lumia 92x, 1020, 1520, LG G2, Nexus 5) : This would be nice, but again, not essential. Remember of course that the 5S is still topping the Nexus 5 in most camera tests!
Yup, WRT shot-to-shot speed or sweep pano support, the 5s is significantly better - in
those tests, the 5s is indeed better. When it comes to low-light or handheld video shooting, it definitely doesn't. According to for example the DPR test, the OIS implementation of the N5 easily allows for taking blur-less shots at 1/6s, which is pretty much impossible with the iPhone 5s:
"Thanks to its optical image stabilization, the Nexus 5 turns in a very good low-light performance as long as key subjects aren’t moving. When the lights go down, the phone drops shutter speeds to as slow as 1/6 sec, and with OIS keeping things steady shake-induced blur is rarely a problem. "
See
http://connect.dpreview.com/post/2158701905/google-nexus-nexus5-smartphone-camera-review?page=6 for more info.
All in all, OIS
is effective in the N5 (as is in the G2 or Nokia's phones). So would be in the iPhone - if it existed, that is. Unfortunately, it isn't.
- dual camera recording (LG G2, Note 3 etc) : Absolutely pointless. I have this feature on my S4 and have NEVER used it. Most, if not all of my S4 wielding friends also have this feature and either didn't know it was there or haven't used it anyway. I can't think of a practical use for this outside of gimmickery.
YOU can't. For
me, it'd be a godsend. My wife is always complaining about me not being shot in photos I take of her. And this is just one aspect of this feature's being useful. Think of how much easier this is in social situations, group photos etc.
- Qi (all Nexuses, several Lumias etc.): Handy, but not ideal. The charging current is quite low. .
With my N7.2013 in a pretty thick case + 1.5A charger It's much higher than I would have thought. Basically, it only takes 3-4 hours for my Nexus7 to get fully recharged from around 10-20%. Not as fast as via the microUSB but the convenience easily beats it being somewhat slower.
- flawless SlimPort-based HDMI (not the Lightning joke) : They don't need it. They can mirror the display to Airplay, that is their alternative. That is something I miss dearly on my S4. There's no difference in carrying a Mini HDMI cable to carrying an Apple TV really.
Then, a quick comparison (I've measured all these myself, for my video-specific articles, also published here in the MR forums):
AirPlay: lag: 130...150ms, maximum effective resolution: 720p, maximum framerate: 30p
SlimPort: lag: 0ms, effective resolution: 1080p, framerate: 60p
And the above AirPlay figures assumed the connection was flawless. When it's not as flawless, the quality / framerate severely drops, making it deliver even lower quality.
BTW, even a lag of 130ms is too much for most action / racing games.
- USB OTG (Android): Handy, adaptors do already exist for iOS devices though (camera connection kit).
Well, actually, USB OTG is far more versatile than just importing images from your memory card. Hooking up mice / keyboards, all kinds of memory sticks etc. all of them will work because there's no artificial 100mA restriction, unlike with Apple's CCK. And, of course, FULL access to the storage content, even for streaming (playback w/o transferring to built-in memory first) and even on a non-rooted Android device. And if you do root, which is a lot more easier on Android than on iOS (particularly with the current iDevices), you will have full filesystem access - without the 100mA restriction, of course.
- decent Bluetooth support (for example OBEX; Android, WP8)
AirDrop...
Is AirDrop compatible with:
- Bada
- feature phones
- Symbian
- WP8
- Windows Mobile (even as early as WM2003)
- Android
-
all desktop computer OS'es with built-in BT support (OS X, Windows 7+, Linux etc.)?
Of course it isn't. OBEX is - it's supported by ALL OS'es listed above, and some. AirDrop isn't even compatible with pre-late 2012 iDevices... So much for it being a way to, say, quickly share a photo with an Internet-less p2p situation, for which OBEX is abolutely good.