Slashdot Mirror
Death Grip Tested On iPhone Competitors
adeelarshad82 writes "Given Steve Jobs' recent claims about 'Death Grip' being a common problem among smart phones, PCMag tested out six major iPhone competitors to see how they would react to the grip. The test included Motorola Droid X, T-Mobile myTouch 3G Slide, Droid Incredible by HTC, BlackBerry Bold 9650, and the Samsung Captivate. The signal strength was measured in dBm, which typically ranges between -50 to -110 dBm (numbers closer to zero show better signal). Interestingly, the test results video showed mixed results. T-Mobile myTouch 3G and Samsung Captivate showed drastic changes, dropping down to -89 and -97 dBm respectively. On the other hand, while the signal strength dropped for HTC Droid Incredible, Motorola Droid X and Blackberry Bold, it wasn't as severe. Results of testing showed that not all phones reacted the same way to the typical death grip and required variations of it to bring about results."
How many of them have bare metal antennas on the surface of the phone? No matter what weasel words Steve chooses, there is no excuse for this defect.
So what if other phones require a "death grip" to affect signal strength? After all, all phones are subject to the laws of physics; if you block the signal, there is nothing the phone can do about it.
"[HTC Incredible] By using a death grip of both hands covering the phone we saw the results go from -57 to -64 dBm"
"[Droid X] can be difficult[...] We used two hands on this larger phone."
"[BlackBerry Bold] was a little more resistant [...] hold of it with two hands, we saw the signal strength go from -80 to -87 dBm."
Yeah, cause covering the entire phone with two hands is a perfectly normal way that people would ever use the phone. I bet if I shoved a smart phone up my a**, it would lose a lot of signal too...
One of the things I've wondered about is that Apple said the iPhone 4 does drop more calls than the 3GS. However, the iPhone 4 gets reception in locations the 3GS doesn't, so if iPhone 4 is dropping calls in situations where the 3GS wouldn't even have bars in the first place, it makes it look worse than it is.
They're seriously comparing phones that lose signal with a standard grip to phones where hold the phone with both hands deliberately trying to cover the antenna and pretend the result is somehow meaningful?
Wouldn't a sane signal comparison compare them using reasonably common grips? It's sorta stupid to say "When you deliberately cover both antennas with an awkward two hand grip it'll lose 10 dBm", everyone knows the antenna will lose signal if you cover it, the point is that the iPhone is so easy to cover by accident.
What's this "completely lose all signal"? I haven't seen any source for this. What I've seen is that there is a large drop in sensitivity if you hold the phone in a certain manner. If you have any reference to a complete loss of signal, please post it. If not, please stop claiming there is such a loss.
I can lose connection out here, because AT&T has low signal strength out here. I can't where I live. That suggests to me a significant but not total drop in sensitivity.
"When you have eliminated the unacceptable, whatever is left, however improbable, must be the truthiness" - Holmes
Why is the standard response for anything anyone is caught doing is to reply that someone else is doing (insert catch word lie: more|also|worse|longer) than we have.
Imagine you've work with 10 people in one room for the last 3 years. At some point you say or do something that offends somebody else. From then on these people you work with take every little quirk you have and blow it out of proportion and endlessly crack jokes about it. Maybe one day somebody thinks you left the bathroom without washing your hands. Another day one of your neighbors is evicted and through some questionable rationale that was your evil doing, too. Every two weeks or so, a new thing comes up to heckle you about but nothing really sticks. One day, fatefully, you drop a pen. You bend over to pick it up and *Frrpbbtbt*, everybody hears you fart. Then, for the next 22 days, you sit there and listen to fart jokes and comments about how much you stink, how brown your undies are, and how everybody in the world pinches their nose when they around you.
Let's not sit here and pretend like the first words out of your mouth wouldn't be: "Yeah, right, like none of you ever fart."
"I like to lick butts!" by MobileTatsu-NJG (#32700246) (Score:5, Informative)
Why haven't they taken the device back for a refund? I know if I purchased a phone that didn't work properly I'd just take it back. This is the best way to teach Apple a lesson about quality control, if they are selling defective phones/phones which don't work with AT&T/phones you don't like/phones you can't hold normally - they should pay for it with a huge return rate. Take your pick of the list of purported reasons, whatever it is, if it's serious enough to lead to lots of dropped calls, why bother with the phone?
Luckily, I bought one of the magical iPhone 4s which isn't affected by any problem with dropped calls (0 over the last month), so I won't be returning mine.
The only reason this is being discussed is Apple pointed out the external antenna.
Yes, but you didn't go all the way. It is being discussed because the design of the external antenna on iPhone4 is such where connecting the miniscule seam on the lower left side with a conductive material (e.g. your hand, keys, etc.) causes dramatic drop in the signal. Touch of a finger, while holding your phone in a perfectly normal way, can cause this.
This is not to be confused with the "death grip" shown in these videos where they are attempting to cover phones' internal antennas with both hands. In fact it's purely coincidental that the "death grip" that may or may not cover the internal antennas (depending on its location) is also connecting the 2 antennas on the iPhone4 with the bottom of your palm.
There is no single "death grip" issue shared between iPhone4 and other phones - this is just what PR Apple used to drag others into the discussion. There are 2 distinct problems:
1. cover internal antenna(s) to "lose" signal
2. touch iPhone in a lower left side to "lose" signal
Some people are saying (2) is way more common and annoying and some are saying it should never have been designed that way. That's why it's being discussed.
That's not to say that it hasn't been discussed enough already. But Apple dragging others into it prolonged it, IMO.
The problem with your analogy, is that farting is natural, unharmful, and cannot be helped.
Lying, cheating, and treating people like shit?
Even if you want to claim it's natural in a competitive, it sure as fuck is harmful and it sure as fuck can be stopped.
You mean like these videos?
Death grip on Droid X, EVO, Droid Incredible, Nexus One, Galaxy 1, G1, etc.
* Droid X: http://www.metacafe.com/watch/yt-kFc..._with_droid_x/
* Samsung I9000 Galaxy S: http://www.youtube.com/watch?v=LROTHrTR92k
* HTC Evo Signal Attenuation: http://www.youtube.com/watch?v=2pj2YBYTbag
* Samsung Galaxy 1:http://www.youtube.com/watch?v=
* Samsung Galaxy 2:http://www.youtube.com/watch?v=oPCQdYtPihg
* Droid Incredible: http://www.youtube.com/watch?v=eaDE941PzQk
* Droid Incredible (With Network Extender in Room): http://www.youtube.com/watch?v=VpEQH...eature=related
* Nexus One: http://www.youtube.com/watch?v=qEIA_lMwqJA
* Nexus One vs. iPhone (start at 1:29): http://www.youtube.com/watch?v=NvMoV4_C4aA
* Nexus One: http://posterous.com/getfile/files.p...n_-_iPhone.m4v
* Nexus One (after Google's update to correct): http://www.youtube.com/watch?v=x2g5J4qPp54
* Nexus One: http://www.youtube.com/watch?v=deCkjeHYT-g
* Android G1: http://www.youtube.com/watch?v=3CDaxhjUs9M
* "Major signal degradation when Nexus One is picked up" (N1 Thread on On this Problem): http://www.google.com/support/forum/...9184c33e&hl=en
Given that many of the phones in the links above drop upwards of 30 dBm, I'd have to say your full of shit, as 30 dBm in a mediocre signal area is certainly enough to cause a phone to drop a call, regardless of carrier, make, or model. If you started with -80 dBm, which is decently strong, you could drop to -110 and drop easily. These are not typical gorilla grips either, but just people holding the phone in their hand.
It happens on all phones, and to suddenly claim only Apple branded signal loss is 'evil' is a bit silly.
In every phone, it's not "touch this spot and your call is gone", it's "cover the antenna and the signal goes down". Remember that water absorbs microwaves, so your hand (~60% water) will attenuate the signal. Even with the iPhone 4, if you don't touch the exact spot but cover all of the GSM/HSPA antenna, your signal will drop. In my old Nokia E62, I can get a ~15 dBm drop if I cover the whole top of the phone with my hand. Notice that most (non-touchscreen) phones have their antennas on the top because of this: you usually don't hold your phone there, so you won't attenuate the signal. Touchscreen phones are a different beast, because they're made to be used both in portrait and landscape modes; in landscape, you do touch the "top" of the phone. That means you need either a bigger antenna, or two antennas (like the Droid X). A bigger antenna on the bottom is used sometimes, because that's not where you usually hold the phone when in landscape mode. Problems with signal attenuation are very common (and more so with touch phones), but that's not the issue with the iPhone 4.
The issue with the iPhone 4 is that you can introduce a very high level of noise by bridging two separate antennas by touching the phone in a place where you would usually touch it. External antennas very close together are the problem. The noise added is what makes you drop calls, not the signal attenuation (you get so much noise that the phone can't find the signal). No other phones have this problem. Antenna design is one area where there are thousands of very smart people trying to get even the smallest improvements. You'd think someone would have thought about putting the antenna outside the phone on the past 10 years, if it was viable. Apple tried (and with some improvements, it could even become viable some day), and now they realize why nobody did it before.
Apple is trying to make their issue (the basic antenna design) look like the common issue (water absorbs microwaves). There's nothing you can do about signal attenuation, except keeping the antenna as far away from your hand as possible; but Apple could have designed the phone differently, and reduce the possibility to bridge the two antennas. The iPhone 4 problem is nothing like the problems other phones show, despite showing the same symptoms (lower call quality, possibility to drop calls, etc).