The Nokia 6133 inherits much of its sibling's features but there are some minor differences. The phone book has been cut in half to just 500 contacts, but that should be sufficient for most users. Each entry can handle five phone numbers, e-mail and Web addresses, job title, company name, work and home addresses, birth date, a nickname, and notes (the SIM card holds an additional 250 names). You can organize callers into groups or pair them with one of the seven polyphonic ring tones (six fewer, however, than on the 6126). You can also pair callers with photos or videos for caller ID (photos show up on the external display). Other offerings include: a vibrate mode; text and multimedia messaging; a calculator; a world clock; a voice recorder (limited by available memory); a calendar with reminders; a to-do list; a notepad; a countdown timer; a stopwatch; and an alarm clock.
For more demanding users, there's Bluetooth for connecting to a headset or sending files. The 6133 also includes voice dialing and commands, a speakerphone, and audio messaging for sending voicemail directly to another phone. Unfortunately POP3 and IMAP4 e-mail support, as well as the Infrared port, are missing; in exchange, you get instant messaging for AOL, ICQ, MSN, and Yahoo accounts. Offbeat features include a translator for English, Spanish, French, and Portuguese; the Nokia sensor application for sending personal messages to other Bluetooth phones; and a Presenter application that allows you to control a PowerPoint presentation or other Microsoft Windows application from the 6133 via Bluetooth to a PC (you'll need the Nokia PC suite). Finally, we liked that you could use many of these functions even without a SIM card.
You can personalize the 6133 with a variety of color themes, wallpapers, screen savers, and alert sounds. If you want more options, you can download them via the WAP 2.0 wireless browser. You can always get more ring tones and use MP3 files to identify callers. The 6133 supports Macromedia Flash Lite 1.1 and Adobe Flash Player. Two Java (J2ME) games are also included (Snake 3 and Midnight Bowling) and you get a demo application of Zuma 3D.
We tested the quad-band GSM (850/900/1800/1900; EDGE) Nokia 6133 world phone in San Francisco using T-Mobile service. Call quality was quite good and on par with the 6126. We enjoyed admirable clarity and volume, and callers said we came through loud and clear, even in noisier environments. We had no trouble getting a signal and encountered little interference from other devices. Again, our only real complaint was that voices sounded a little harsh at times. Speakerphone calls were loud enough, though voices sounded a bit muffled on our end. Likewise, callers had more trouble hearing us, but they didn't report significant problems. Call quality was decent over a Bluetooth headset.
Music quality over the single phone speaker was nothing special. As with the 6126, tracks on the 6133 played tinny and somewhat distorted, especially at higher volumes. By all means--use a stereo headset. The phone comes with a serviceable headset, but for really good audio quality, we recommend you use a different headset.
The 6133 has a rated talk time of 3.5 hours and a promised standby time of 12 days, both of which are slightly higher than the 6126. Our tests indicated a talk time of 3 hours and 56 minutes, which is slightly higher than the rated talk time. According to FCC radiation tests, the Nokia 6133 has a digital SAR rating of 0.89 watts per kilogram.