手机信号G、E、O、3G、H、H+、4g含义科普 你知道吗？

用过安卓手机的都知道，信号显示哪经常有手机信号G、E、O、3G、H、H+、4g的之类的数字，而经常会变，今天小编告诉你安卓手机里的G、E、O、3G、H、H+、4g之类的含义。

G  指GPRS，是2.5G网络（iPhone显示O）；
E  指EDGE网络，属2.75G；
3G 指普通3G网络，速度在2-7M；
H  指3G的升级版hsdpa网络，是3.5G，速度可达14.4M；
H+ 是hsdpa的升级版hspa+，是3.75G，速度可达21M-42M。
4g 技术支持100Mbps~150Mbps的下行网络带宽。4g意味着用户可以体验到最大12.5MB/是~18.75MB/s的下行速度。

网络速度从慢到快依次是G
PS:上面说的速度都是理论速度。实际影响的因素有很多，所以一般都不会稳定在最大速度。

Qualcomm Snapdragon 200, 400, 600, 800 CPUs

Source: Darren Yates 30 June 2013

US ARM-class chip maker Qualcomm produces some of the hottest ARM processors on the market and its no surprise that any smartphone maker worth its salt is lining up to get hold of Qualcomm’s Snapdragon CPUs for its products. But with so many different options available, it can be a bit of a nightmare trying to figure out what’s what.
So in this roundup, we’re going to look at the Snapdragon 200, 400, 600 and 800-class ARM processors to see what makes them tick. We won’t delve into the architecture but we will look at them in a way that makes it easier to tell them apart when you’re trying to decide between phones.

Qualcomm Snapdragon 200
The Snapdragon 200-series is the entry-level ‘newbie’ range of the new family.
So far there are six different Snapdragon 200 CPUs – the MSM8225Q, MSM8625Q, MSM8210, MSM8610, MSM8212 and MSM8612.
Rather than concentrate on each model, we’ll break them down into the differences.
The Q-series are actually older ARM Cortex A5 designs, but quad-core and clocking at 1.4GHz. They’re manufactured on a larger 45-nanometre scale so they’re cheaper to make, but not as power efficient. They use the entry-level Adreno 203 graphics core.
The 8×10 series (dual-core) and 8×12 models (quad-core) are based on the newer Cortex A7 design, all clocking at 1.2GHz with faster Adreno 302 graphics. They’re manufactured at a smaller 28nm scale, so they’re more expensive to make but more power efficient, which should help with producing good battery life.
The Snapdragon 200 series was only announced recently and will be used in entry-level smartphones.

Qualcomm Snapdragon 400
The 400-series is the most plentiful in numbers with ten on offer – we’ll keep this short and just use the basic model numbers: 8226, 8626, 8926, 8230, 8630, 8930, 8030AB, 8230AB, 8630AB, 8930AB.
The 8×26 range are quad-core Cortex A7 designs with up-rated Adreno 305 graphics cores, all manufactured at 28-nanometres and clocking at between 1.2 and 1.4GHz.
The 8×30 series are dual-core but are the first to utilise Qualcomm’s own custom Krait CPU design. Qualcomm is one of the very few ARM license holders that pumps out its own architecture. The Krait design conforms perfectly to the ARMv7 instruction set but does it differently to the reference ARM Cortex design. And this is first CPUs where the Qualcomm ‘special sauce’ comes into play. These chips are based on the entry-level Krait 200 core design, but otherwise share the 8×26 features such as 28nm manufacture and Adreno 305 GPU core.
Finally, the the four AB-series chips all use the uprated Krait 300 core design clocking up to 1.7GHz, again in a dual-core arrangement, manufactured at 28nm and with the Adreno 305 core.
The Snapdragon 400 series is expected to appear in mid-range phones in the next 12 months.

Qualcomm Snapdragon 600
For most of 2013, the Snapdragon 600 series has been the flagship Qualcomm CPU range, appearing in some top-drawer smartphones including the HTC One and Samsung Galaxy S4.
At the moment, there are only two in this series – the APQ8064T and APQ8064M. Again, these are both manufactured at up to 28nm and run the faster Adreno 320 graphics core. The main difference is the T chip runs at up to 1.9GHz, while the M model tops out at 1.7GHz. The T also includes integrated Wi-Fi and Bluetooth while the M doesn’t. Basically, these are quad-core versions of the Snapdragon 400 but include the faster Adreno 320 GPU.

Qualcomm Snapdragon 800
The Snapdragon 800 is now the new flagship ARM CPU until we see the the first 64-bit Cortex A57 chips some time in 2014. They use the new Krait 400 core design, clocked up to an impressive 2.3GHz. They all run the fastest Adreno 330 GPU core, they’re all manufactured at 28nm, they all have integrated 802.11a/b/g/n/ac Wi-Fi and Bluetooth 4.0. The difference? The modem. The 8074 comes with no data connectivity at all; the 8274 is the HSPA+ (3G); the 8674 supports CDMA networks; and the 8974 is the next-generation 4G/LTE option.
So far, the first phones announced using these chips are the Samsung Galaxy S4 LTE-A model and Sony’s Xperia Z Ultra. Reports also suggest Microsoft showed off its up-coming Surface RT tablet using a Snapdragon 800 series CPU at its recent Developer’s Conference. This will be an interesting test to see how well the Snapdragon Krait core compares with Intel’s X86-architectured Atom CPU in a Windows environment in terms of productivity speed.
So that’s a rough snapshot of the new Snapdragon series – as I said, it’s not a full-on view of the architecture difference but it should be enough for you to understand just what you’re picking up the next time you go to buy a Qualcomm-powered smartphone from your favourite brand.

Mi Pop Singapore 2014

Jiayu S3

Jiayu G4(4.7") VS S3(5.5")

Jiayu S3
OS: Android 4.4
CPU: MT6752 Octa Core LTE CPU 64bit
RAM     2/3GB,DDR3
Storage  16GB
Sim Card: Dual SIM card (support TD-LTE and FDD-LTE)
Service Provide: Unlocked
2G: GSM 850/900/1800/1900MHz
3G: WCDMA 2100MHz
5G Wifi AC
MS mode: WCDMA/GSM
Shell Material    Plastic
Screen: Capacitive Touchscreen, 1920*1800 High-resolution Screen
Size:  5.5 Inch inch
Visible Angle: 178°
Resolution: 1920*1800 Full HD IPS
Navigation     GPS+AGPS Navigator
Daul Camera:  Front Camera 8.0M ,13.0M Pixels High definition Back Camera Auto Forcus Sony MX214 1300
Battery: 3000mAH

Size: 152 X 75.5 X 8.9 mm 

价格无下限：小米或将推出399元4G手机

随着小米与联芯科技合作的落实，小米将推出搭载联芯芯片的手机似乎已经是板上钉钉的事情。而最新的消息显示，小米或将推出内置联芯芯片的399元4G手机。

今天中午，一位网友@手机晶片达人 在微博爆料：“小米准备用联芯1860芯片推出399元移动4G手机。”

根据联芯官网的信息，联芯1860芯片的全称为LC1860，使用28nm工艺制造，集成6颗主频为2GHz的Cortex-A7核心，GPU型号是 Mali-T628MP2，支持双通道LPDDR3内存，2000万像素摄像头。另外还支持GSM/EDGE/WCDMA/TD-SCDMA/LTE FDD/TD-LTE网络，最高可达5模17频，当然，如果小米售价定位在399元的话，则可能采用成本更低的三模方案，即支持GSM/TD-SCDMA /TD-LTE。

事实上，早在今年7月，安兔兔就曾在数据库中发现过一款型号为2014502的小米新机，其屏幕分辨率为720p，内存为1GB，处理器型号为联芯L1960，规格和LC1860差不多。如果该机最终配置真是这样的话，售价399元应该是很靠谱的。

  今年的双11小米手机再度创造奇迹，平面、网媒科技版今晨的头条基本都是高歌小米的战绩，官方最新公开的数字确实让人惊讶，小米双11成功售出116万台手机，总销售额高达15.6亿元，成功蝉联双11手机类销量第一的成绩，其它各类设备的销量同样不俗。

   此外最近关于小米与大唐电信旗下联芯合作的消息亦是热门关注点，业内盛传小米欲借联芯最新LC1860平台推出超低价4G智能手机，售价据说只需399元，日前业内人士手机晶片达人再度就廉价小米手机爆料，399元小米手机明年1月便面世。

   据悉这款399元的超级低价4G手机将于闻泰ODM，外观、硬件等均为闻泰设计，确认会采用联芯科技的LC1860芯片，而LC1860又分三模五模，小米廉价手机初期只支持移动4G/3G/GSM三模，并不具备支持联通4G/3G的能力，后续的升级版可能会采用五模设计。

   小米与联芯在资本层面合作，显然是想从芯片开始降低成本，欲借比红米系列更低价格的产品来提升销量。其实当前MTK平台的399元档的三模4G手机已经不少，但是小米有大家喜欢的MIUI系统，加上品牌影响力，不少业内人士都看好其销量。

骁龙615/5吋FHD屏，红米二代配置再曝光

关于红米Note的升级版本，我们此前已经有了不少的曝光。但是作为红米系列最先推出的产品，千元级别的红米同样有升级的版本。近日有消息人士指出，这款红米系列的新机，或采用1080P级别分辨率屏幕。

该消息由潘九堂在昨天下午爆出，其本人透漏了更多红米新机的信息。他表示，下一代红米手机配备5.5英寸1080p的消息并不靠谱，合乎逻辑的说法是，下一代红米手机将配备5英寸FHD(1080p)显示屏。

潘九堂表示5英寸是最广泛使用的标准尺寸，也是此次红米2代屏幕提升的基本原因。当然了，和Note系列进行区分也是很重要的一个因素。不过问题来了，以目前红米全线低于1千元的水准，1080P真的靠谱么。
根据此前的消息，红米下一代产品正在准备，其搭载了骁龙615处理器。此外，有消息称该机配备了5.5寸1080p屏，1300万像素摄像头，2GB内存等等，整体来看依旧是一款中端配置级别的产品。
具体到发售方面，目前小米其实还在酝酿一款旗舰配置级别的红米Note新机，整体价格也有所提升。不知道屏幕升级以后的红米2代，会否在价格方面做出调整。

小米4/魅族MX4/荣耀6该选谁

Which one would you choose?