FaceTime

Meet Manveer. I’ve known him since I was in the 6th grade. Somewhere around the 8th grade we started a ritual of calling each other every day after school and talking about video games, computers and dumb things that happened at school. We talked on the phone for hours. Back in those days we would even play the same game on separate computers while talking on the phone. It was a precursor to voice chat in gaming networks like Steam or Xbox Live. It was ridiculous amounts of fun.


Manveer is up in the corner, the crazy guy is yours truly

Tonight Manveer and I FaceTimed. It’s the feature I wish we had when we were back in middle school. These days it’s a lot harder to explain why you’ve got some random dude’s face on your phone talking to you about completely pointless things at 12:54AM on a Tuesday night. I spent part of the chat covering one of the lights in my room with my head and calling it an Anand Head Eclipse. At the risk of further embarrassing myself publicly, it was fun.

For those of you who don’t know, FaceTime is Apple’s VoIP protocol built into the iPhone 4.

Granted we’ve been able to do this sort of thing for quite a while now over instant messenger networks. Integration into your smartphone is just the next logical step, and in the right conditions it works very well.

The first requirement is that both users need to have an iPhone 4 obviously. Both also need to be on WiFi. While the FaceTime icon will appear if you call another iPhone 4, if you try to activate the connection you’ll get this error unless you’re on WiFi:

With a bit of poor UI design Apple will actually display a FaceTime icon with a question mark in it if you call another iOS phone. Trying to activate FaceTime however gives you an error.

FaceTime requires roughly 100 - 150Kbps of bandwidth in both directions to work smoothly. The download should be fine but the upload is pretty high given that many broadband providers in the US are ridiculously stingy with their upload bandwidth. For FaceTime to work well you can’t be uploading or downloading anything large in the background, or if you are just throttle everything else to give you enough bandwidth to work with.

The next problem with FaceTime is the iPhone 4 lacks an absolutely necessary integrated stand. HTC got it perfect with the EVO 4G, unfortunately the 4 has no such thing. The closest you can get is Apple’s iPhone 4 dock, it’ll set you back $29 but it’s necessary to prevent you from getting tired holding your phone out in front of you. Laying the 4 down on your desk while you FaceTime just gives the person on the other end of the line a great view of your nostrils. Not very welcoming.


This is the on-table view of FaceTime, you need a stand

Even once you’ve met all of the requirements it’s still not a guaranteed thing. Even with ample bandwidth I had one FaceTime chat stall in the middle of the chat. My incoming feed froze and I had to wait a couple of seconds for it to resume. I also had a problem where FaceTime would fail to start on the first try. A subsequent try fixed it.

As you'll see in our camera investigation, the low light performance of the 4's front facing camera is horrid. Couple that with FaceTime and you will get bad image quality if you're not in a well lit room:


Ugh, what is this, 1998?

While in FaceTime you can easily switch between front and rear cameras by tapping the camera icon in the lower right corner. Unfortunately the compression on the video is enough to render text illegible while in FaceTime:


This was taken using the rear facing camera over FT

Obviously everyone knows where FaceTime is going. Apple is supposedly opening the protocol up to all developers, so you’d be able to theoretically build desktop and other smartphone FaceTime clients. And ultimately as mobile broadband speeds (hello WiMAX and LTE) improve the WiFi requirement will be dropped. But is it a good feature today?

It really depends on who you know with an iPhone 4. If you’ve got a Manveer, absolutely - the feature is worth it. If you have a bunch of casual acquaintances with iPhone 4s, probably not. It’s only useful if you know the person on the other side very well.

There is one other major benefit to FaceTime. Once enabled your call is routed over WiFi to the Internet, not AT&T’s 3G network. It doesn’t use any of your plan’s minutes and more importantly, voice quality is much improved over a regular 3G/EDGE phone call. It’s VoIP, not a crappy cell connection. Even if you just cover the camera it’s actually better to make calls over FaceTime than 3G based on the sound quality alone.

Camera Usability Sidebar: Luxa2 H1-Touch, a Great FaceTime Stand
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  • Brian Klug - Wednesday, June 30, 2010 - link

    I've read your commentary but don't see how we're in disagreement, about anything to be honest. I know for a fact that Apple is reporting RSSI (signal strength) in dBm and not using SNR. You'll just have to trust me that this is the case ;). This is entirely the point of the section - to illustrate just how useless that metric is especially in the case of the iPhone 4, and how much they need to use a different quality metric like CQI.

    In addition, this: "Because cellular carriers don't want clients to see less than 5 bars, so they have been pretty much rigged to display 5 bars in most situations until the signal is VERY BAD."

    Is exactly what I've stated, a few times in so many words in the article. In fact, it's that kind of blatant lying about the dynamic range which makes this effect even more exacerbated. I realize that carriers have a vested interest in making the network look great everywhere - but turns out this ended up biting apple back with the iPhone 4 for reasons I stated.

    I agree that normally -107 dBm of signal is bad, but have reason to believe that the iPhone 4's baseband deals just fine with the link even at that signal. Definitely grab someone's iPhone and try it out at -107 and -113; the amount of success I've had is unparalleled compared to other UMTS handsets I've played with.

    -Brian
  • fhaddad922 - Wednesday, June 30, 2010 - link

    The subject says it all, but I'll type it again for the slow.

    If you have any type of "smart" phone (I have no idea whats so "smart" about it) and you are paying $100+ per month to use it, you are really dumb. The only smart people are the ones that convinced you to buy this crap!

    Now, if you are some type of a business owner and you need to keep in contact with employees or customers or something similar, than by all means, purchase one of these phones and use it.

    But for the rest of the world (which is probably 90% of the readers here), why the f**k do you need a $100+ / month plan?

    The phone does nothing that you need. Stop making the cell phone companies richy.

    They talk about how good the camera is on it... IT SUCKS!
    They talk about how good the video is on it... IT SUCKS!
    They talk about how you have to hold the phone the right away... I bet one of the designers said "oops"
    FaceTime.. lawl... really?

    They are already gouging their customers. For example, to charge $0.25 to send a text message is asinine. It's not even $0.50 to put a letter in the mail and mail it across the country. How do they justify $0.25 to send a text message? On top of that, for $50.00 / month and you don't get unlimited calling. Thats dumb.
  • strikeback03 - Thursday, July 1, 2010 - link

    Thank you for the anti-capitalist rant
  • petzi-bear - Wednesday, June 30, 2010 - link

    Have you tried it with a glove?
    Should be easier that applying a thin film.
    I thinking about clear coating the frame :-)

    But a.) I am right handed
    b.) I couldn't get my hands a phone yet - still sold out
  • Brian Klug - Wednesday, June 30, 2010 - link

    Very good point, I'll try that too!

    -Brian
  • MonkeyPaw - Wednesday, June 30, 2010 - link

    Actually, you might have more issues with the "touch of death" if you are right-handed. I'm a righty, and I hold cell's in my left hand all the time so that I can free my dominant hand for things like writing or mouse clicking.

    Personally, the iPhone4 is a nice step up, but I really question the design choices. Glass on both sides? A non-coated metal rim that doesn't like human touch? Serious engineering flaws for an otherwise well-designed device.
  • Brian Klug - Wednesday, June 30, 2010 - link

    See this is exactly how I end up holding the phone. I hold it in my left hand (the wrong way) and use the right hand to tap, select, e.t.c.

    -Brian
  • vol7ron - Wednesday, June 30, 2010 - link

    Trying with a glove would be interesting, since around here summers are hot and winters are cold (glove worthy).

    I was suggesting the film because many people I know use it because it makes the phone more pocket-worthy. Using a hard plastic case, or even a silicone case, provides unnecessary bulk, which is uncomfortable when wearing those stylish tight new pants -ha.
  • jasperjones - Wednesday, June 30, 2010 - link

    usually i find something to criticize but not today. excellent review. that is it.
  • jasperjones - Wednesday, June 30, 2010 - link

    Actually I found something.

    The battery life figures for the Nexus One were simply copied from the original Nexus One review (when the phone ran 2.1/Eclair). This doesn't make sense as you updated all other figures (performance etc.) to reflect FroYo.

    FroYo has much improved battery life on my Nexus One.

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