Samsung Galaxy S4 (GT-I9505)

Overview
This device supports single-stream 802.11abgn/ac
 * It is presumed to be using Broadcom BCM4335

The battery shown in the FCC photos is P/N GB/T18287-2000 (3.8V, 9.88Wh)
 * The NFC antenna looks to be integrated

Device Specifications

 * SoC: Qualcomm APQ8064T (Snapdragon 600) 1.7GHz (4x Crait 300)
 * Samsung Galaxy S4 Active
 * Samsung Galaxy S4 (I9505) • GSM Arena
 * Samsung Galaxy S4 CDMA


 * SoC: Qualcomm APQ8064AB (Snapdragon 600) 1.9GHz (4x Crait 300)
 * Samsung Galaxy S4 LTE


 * SoC: Qualcomm MSM8974 (Snapdragon 800) 2.3GHz (4x Crait 400)
 * Samsung Galaxy S4 LTE-A
 * Samsung Galaxy S4 Active LTE-A
 * Samsung Galaxy Note 3 LTE


 * SoC: Samsung 5410 - N5VA101 (Exynos 5 Octa)
 * Samsung Galaxy S4 (GT-I9500) (No LTE)
 * Samsung Galaxy S4 (GT-I9502) (China)
 * Samsung Galaxy S4 (SCH-I959) (China)
 * Samsung Galaxy S4 (SHV-E300S) (K/L/S) (Korea)

Teardown

 * Inside the Samsung Galaxy S4 on ChipWorks
 * Murata OUI (40:F3:08)

Google Play Edition
The model number is GT-I9505G. At the Google I/O 2013 keynote, Samsung and Google revealed that an edition of the U.S. S4 would be released on June 26, 2013 through Google Play, initially featuring stock Android 4.2.2, later updated to 4.4.4, with Samsung provided updates; it has an unlockable bootloader (similar to Google Nexus devices) and supports LTE on AT&T and T-Mobile's networks.

Model variants
Several different model variants of the S4 are sold, with most variants varying mainly in handling regional network types and bands. To prevent grey market reselling, models of the S4 manufactured after July 2013 implement a regional lockout system in certain regions, requiring that the first SIM card used on a European and North American model be from a carrier in that region. Samsung stated that the lock would be removed once a local SIM card is used. SIM format for all variants is Micro-SIM, which can have one or two depending on model.