WiFi Hotspot

Like most all other Android phones, the Droid 3 supports creation of a mobile WiFi hotspot, and does so through some custom Motorola software rather than the stock android host AP tool. The Droid 3 allows a maximum of 5 simultaneous users on its WiFi hotspot, and unlike the X2, I was able to test this out and run our hotspot battery life test and also stress test a bit. The configuration tool thankfully allows specification of which channel to use (something most others don’t) alongside the typical WPA2 PSK/open configuration and of course SSID. The software also gives control over individual connected devices, showing a list and also providing a notification when devices attach and detach.

 

I encountered no bugginess at all with the Droid 3’s mobile AP when using it at cafes or when out and about. It’s effectively the same software used across the entire Motorola Droid lineup with the latest respective updates.

Speakerphone Quality

Next up is speakerphone, which is important of course not only for voice calling but also playing back music and using Google navigation. I talked about the car dock already, and the real assumption is that you use the car dock in conjunction with either A2DP to a bluetooth head unit, or use a supplied 3.5mm audio cable that jacks into your car’s aux jack, if you’re lucky enough to have one. Sadly, my car lacks both bluetooth and an aux jack, and has no tape deck or easy other means of getting audio in, so having a loud speakerphone for route guidance is very important.

The Droid 3’s speakerphone is on the back and changed considerably from the previous generation Droid and Droid 2 which previously stuck it under a grille next to the battery. Instead, the Droid 3 has a small, long port with a raised top lip to prevent the port from laying completely coplanar with a table and directing no audio out. Next to it, centered, is a microphone which aids in noise cancellation and also stereo audio capture.

Speakerphone Volume

We measure speakerphone volume by placing a call to the test ASOS locally and using a digital decibel meter placed 6” above the device with its display face-up and on maximum volume. By the charts, the Droid 3 honestly isn’t as loud as its predecessors. Subjectively, I agree with the results - it isn’t as loud as I wish it could be while using Google navigation, but there’s no distortion on the speaker at least.

Call Quality and Noise Rejection

Last but not least in this section is actual call quality, which we’ve done a bit more analysis on with the Droid 3 than normal. I think we’re starting to settle on a call testing suite that’s representative, though some non-subjective tests are still being derived.

The first thing we’ve done is place calls to the local ASOS number and record them with the Droid 3 on three different voice coders. By default, virtually all CDMA2000 1x voice devices use EVRC, however there’s another EVRC-B voice coder which adds a quarter rate, and the highest quality 13k voice coder which is sort of a legacy standard that sounds better but uses more bandwidth. I’ve tested the same number with all three and tossed them up on soundcloud. This is of course a recording taken by running line-out from the Droid 3 to line-in and recording.

Motorola Droid 3 - EVRC Verizon Wireless by AnandTech Motorola Droid 3 EVRC-B Verizon Wireless by AnandTech Motorola Droid 3 - 13k Verizon Wireless by AnandTech

The Droid 3 subjectively sounds excellent in call tests, definitely better than the average CDMA2000 phone. In addition, I decided to test another thing - ambient noise cancellation on the Droid 3 when in a noisy environment. I noted earlier that the device has three microphones, one at the very top, one on the back, and one on the front at the lip of the device.

To test this, I called a couple of parties in a loud environment playing back music and increased volume, asking them if they could hear the background noise. Only at the highest settings did they report hearing any background noise at all. I went on to then test by recording the call and likewise playing back loud music. I compared to the iPhone 4 and made two recordings where background music (which included vocalizations in addition to instrumentals). Only at the highest (almost painful) volume levels is background noise audible to the receiving party, as illustrated in the recordings I’ve uploaded and provided below. The Droid 3 arguably performs better than the iPhone 4 at noise rejection which is quite a landmark considering its longstanding reputation as having excellent noise rejection.

Motorola Droid 3 to AT&T iPhone 4 by AnandTech AT&T iPhone 4 to Motorola Droid 3 by AnandTech

The Droid 3 has excellent ambient noise cancellation during calls, again thanks to the two extra microphones which are no doubt used for processing. I’m not sure what IP is beyond the Droid 3’s noise rejection hardware, but clearly it does a good job.

Cellular and WiFi Connectivity, GPS OMAP 4430 and Performance Analysis
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  • 7amood - Saturday, July 30, 2011 - link

    that's nice to hear

    please don't forget to talk about the screen problem
    http://www.gsmarena.com/samsung_galaxy_s_ii_displa...

    It's really hard to accept that my perfect SUPER AMOLED is not perfect.
    It's harder to accept the fact that samsung don't give a f*** about me since they already have my money.
  • takumsawsherman - Saturday, July 30, 2011 - link

    On the GL benchmark, it shows iPhone 3GS running faster than iPhone 4. Is this correct? If so, why do you think iPhone 4 is performing worse on the test?
  • Ryan Smith - Sunday, July 31, 2011 - link

    GLBench runs at the device's native resolution. The iPhone 4 is 4x the resolution of the 3GS.
  • Lucian Armasu - Sunday, July 31, 2011 - link

    It looks like OMAP is on the way out from the market, though:

    http://semiaccurate.com/2011/07/29/texas-instrumen...

    Now the fight will be left between Nvidia, Qualcomm and Samsung.
  • martyrant - Sunday, July 31, 2011 - link

    My VP wanted one, so we both got one the same day. I don't talk on the phone as much, but after a week I did a conference call on it and it drained it from 80% to 15% in under an hour. I also just left it on a charger last night, saw it go from 30-90%, went to bed, got up and just checked it (while still plugged into the charger) and it's back at 30%. Did you see any strange anomalies when running your battery life tests? My VP loves the phone, but hates the battery--his dies all the time and so does mine. It seems like while your tests look awesome, the real life performance of this phone is nowhere near in line with those tests when it comes to battery. I have tried max battery saver, just about everything---had to get the VP an extended battery pack and he still doesn't know if he can continue to use this phone because of the battery issues.
  • martyrant - Sunday, July 31, 2011 - link

    It went to 20% from 30% while writing that comment, while plugged into the charger. Hot, right?
  • josby - Sunday, July 31, 2011 - link

    Same here. I bought mine the day they were released in stores, but I've been anxiously awaiting the AnandTech review of it because I knew it would include battery life comparisons. I came from a T-Mobile G2 (running Cyanogen7) and have all the same apps, with the same update intervals set, on my Droid3 as I had on the G2, yet the battery life is very noticeably worse. It can barely make it from morning til night even with very light usage.

    In fact, I always left my G2's wifi on, yet the Droid3 still doesn't last as long even if I leave wifi off.

    Yet, the G2 does considerably worse than the Droid3 in the battery life tests in this review.
  • Brian Klug - Sunday, July 31, 2011 - link

    That's odd - I wonder what kind of signal environment he was in when he made that call. Could you find out what Rx signal strength was in dBm?

    The only part of the entire cellular architecture that has a power control loop is the phone->base station, and when you're in a low signal environment the phone can increase Tx power to be "heard" by the base station and thus hurt battery life considerably. We always test in areas with at least -75 dBm or better.

    -Brian
  • photoguru - Monday, August 1, 2011 - link

    I had major problems with my battery life until I realised that the power adapter for the Droid 3 requires 5.1v at 850mA which is quite a bit higher than most chargers. Mine actually died while browsing the web and being plugged into a Belkin usb charger.

    Also, theres an issue with programs not turning off once you exit them. Task killers should fix it but I actually just went through the programs and manually adjusted which ones can continue to run in the background. Now my battery lasts almost twice as long as it did before, and quite a bit longer than my droid 1 and droid 2 global.
  • anandtech pirate - Sunday, July 31, 2011 - link

    how about the Evo3D?

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