TFT (Thin Film Transistor) - Liquid crystal displays based on thin-film transistors with an active matrix. For each pixel there are three transistors corresponding to three colors (RGB - red, green, blue). At the moment, these are the most common displays, having a number of advantages over other displays. They are characterized by minimal response time and rapid development - an ever-increasing resolution and number of colors. These displays are most common in mid-range phones and above. Working permissions for them: 128x160, 132x176, 176x208, 176x220, 240x320 and others, less common. Examples: Nokia N73 (240x320, 262k colors), Sony Ericsson K750i (176x220, 262k colors), Samsung D900 (240x320, 262k colors). TFTs are very rarely used as external displays for clamshells.
CSTN (Color Super Twisted Nematic) - Passive-matrix color liquid crystal displays. Each pixel of such a display consists of three combined pixels, which correspond to three colors (RGB). Some time ago, almost all phones with color displays were based, namely, on this type. And now the fate of such displays is budget models. The main disadvantage of such displays is their slowness. The undoubted advantage of such displays is their cost, it is much lower than TFT. Based on simple logic, it can be assumed that in the future TFT will displace this type of display from the market for mobile devices. The evolution of the color of such displays is quite extensive: from 16 to 65536 colors. Examples: Motorola V177 (128x160, 65k colors), Sony Ericsson J100i (96x64, 65k colors), Nokia 2310 (96x68, 65k colors).
UFB (Ultra Fine and Bright) - Liquid crystal displays with increased brightness and contrast on a passive matrix. We can say that this is an intermediate option between CSTN and TFT. This type of display boasts lower power consumption than TFT. For the most part, Samsung has used these displays in mid-range phones. This type of display is not widespread. Examples: Samsung C100 / 110 (128x128, 65k colors).
TN is one type of matrix of TFT screens. If roughly, then TN are the simplest and cheapest TFT matrices. Viewing angles are the narrowest.
Nokia, Nokia ... Once upon a time it was the only brand for me cell phones. Only Nokia. And no nails. Actually, the legendary Nokia 3310 could hammer in nails. But enough lyrics, let's look at the Microsoft Lumia 535 Dual SIM smartphone. Now it can be purchased for 7-8 thousand rubles. It is worth recalling that the Lumia line of models was created by Nokia, but now it is Microsoft.
Cons Lumia 535 Dual SIM
1. The main disadvantage is that the smartphone uses the operating system Windows phone. And that means you get less useful programs and applications (both paid and free). There is nothing to be done, the share of Windows Phone phones is extremely low compared to devices on android based or iOS. In fact, this is a very significant minus, which can outweigh all the advantages.
2. Not quite clear interface, complicated organization of settings (see screenshots).
3. No 4G. Actually, this is not a real minus - after all, nobody promised us 4G. But there are very few cons, so I had to finish it.
Pros of Lumia 535 Dual SIM
1. The smartphone showed excellent battery life. In the traditional test (more on that later), the phone worked for 7 hours without recharging. Budget devices at best work 5-6 hours.
2. The selfie camera has a resolution of 5 megapixels. Plus it’s wide-angle so that more faces fit into the frame. And the quality is not inferior to the main camera. A definite plus. The main camera has autofocus and flash.
3. Good iron. In addition, it is believed that Windows backgrounds are less demanding on the hardware. No brakes were noticed.
4. Another plus is a good screen: IPS, 540x960, 5 inches. True, the pixel density could have been greater. There are only 220 ppi. We also note the glass Gorilla Glass 3.
5. Two SIM cards are a very necessary feature in the era of the next economic crisis. So you can minimize the cost of cellular communications. Note that both slots require microSIM format.
6. There is support for the GLONASS satellite system. Not to say that a very necessary thing, but certainly not superfluous.
7. Most Android phones are available in black (less often white) cases. Other colors are extremely rare. Well, Lumia is one of their chips. In this case, you will get two back panels: one color (white, gray, blue, light green, orange) and one black.
Software
Microsoft Lumia 535 Dual SIM is running operating system Windows Phone 8.1 with a proprietary shell Lumia Denim.
In the kit you will find a bunch of applications: Alarms, Videos, VKontakte, Food, Health and Fitness, Calendar, Maps, Wallet, LitRes: Read, Music, News, Weather, Podcasts, Travel, Sports, Finance, Photos, Yandex.Music, Facebook FM radio Internet explorer, Lumia Cameras, Lumia Selfies, Lumia Photo Studio, Messenger, MixRadio, Office, Skype, etc.
If you want to take a screenshot, you need to simultaneously press the power button and increase the volume.
Battery and runtime
The battery capacity is 1 905 mAh. Why not 1,900, I don’t know. But I know that the smartphone lasted when watching online video via Wi-Fi on YouTube for about 7 hours (brightness and volume in the middle, listening through headphones, mobile Internet and Bluetooth are disabled). This is a great result.
The full charge from a standard memory is 2.5-3 hours. Turn on time - 30-35 seconds. Everything is standard here.
Test results
AnTuTu Benchmark (comprehensive test) - 10,000.
WP Bench Free (comprehensive test) - 230.
Since this is the first windows phone, it is difficult to compare test results with others. However, I note an interesting point. The first Antutu test showed a result of 11,821, the next - 10,790, then 10,331 and so on. The results were getting worse and worse until they reached 9,257. After the reboot, 10,957 points were scored.
A similar situation was repeated with WP Bench. The first test scored 249.93 points, and with each subsequent test the results worsened. What is the matter, it is not clear. On Android devices, this was not observed. There, the results are almost always at the same level.
Key Features of Nokia Lumia 535 Dual SIM
Number of supported SIM cards: two (microSIM)
CPU: Qualcomm Snapdragon 200 Quad-Core (1.2 GHz)
Video processor: Adreno 302
RAM: 1 GB
Built-in memory: 8 GB
MicroSD support: up to 128 GB
cellular: GSM 850/900/1800/1900, WCDMA 900/2100
Speed mobile internet in 3G: up to 21 Mbps
Wi-Fi: 802.11 b / g / n (2.4 GHz)
Bluetooth: Bluetooth 4.0
GPS: there is
GLONASS: there is
Screen type, number of colors: IPS, 16 million
Screen size: 5""
Resolution (Density): 540 × 960 (220 ppi)
Cameras:
main: 5 megapixels, autofocus, flash
Front: 5 megapixels, wide-angle
Video: 848x480 (30 frames / s)
Battery: 1 905 mAh, removable
Working hours: 7 (watch online video)
Dimensions: 72.4 x 140.2 x 8.8 mm
Weight: 146 g
OS Version: Windows Phone 8.1 + Lumia Denim
SIM Lock: not
Unit price: 7-8 thousand rubles.
Link to the official website with a description.
- Height: 140.2 mm
- Width: 72.4 mm
- Thickness: 8.8 mm
- Weight: 145.3 g
Display
- Display size: 5 ""
- Display resolution: qHD (960 x 540)
- Display colors: TrueColor (24-bit / 16M)
- Display technology: IPS LCD
- Pixel density: 220 ppi
- Display features: Tactile feedback, Brightness control, Orientation sensor, High brightness mode, Scratch resistant glass, Corning® Gorilla® Glass 3, Sunlight readability enhancements
- Touch screen technology: Capacitive multipoint-touch
Memory
- Mass memory: 8 GB
- RAM: 1 GB
- Maximum memory card size: 128 GB
- Expandable memory card type: MicroSD
- User data storage: In device, Memory card, OneDrive cloud storage, App and data storage on memory card
Battery
- Replaceable battery: Yes
- Battery capacity: 1905 mAh
- Battery voltage: 3.7 V
- Maximum standby time with dual SIM : 14 days
- Maximum talk time (2G): 11 h
- Maximum talk time (3G): 13 h
- Maximum music playback time: 78 h
- Maximum Wi-Fi network browsing time : 8.5 h
- Maximum video playback time: 6.5 h
Design
- Design details: Exchangeable back cover
- Other user interface features: Voice commands, Tactile feedback, Vibrating alerts, Double-tap to wake, Word flow keyboard
Keys and Input Methods
- User Input: Touch
- Operating keys: Volume keys, Power / Lock key
Sensors
- Sensors: Accelerometer, Proximity sensor, Ambient light sensor
Processor
Connectivity basics
- SIM card type: Micro SIM
- Dual SIM: Dual Standby SIM
- AV connectors: 3.5 mm stereo headset connector
- Charging connectors: Micro-USB
- System connectors: Micro-USB-B
- USB: USB 2.0
- Bluetooth: Bluetooth 4.0
- Bluetooth profiles: Hands-free profile (HFP) 1.6, Object Push profile (OPP) 1.1, Generic Attribute Profile (GATT), Phone Book Access Profile (PBAP) 1.1, Personal Area Network Profile (PAN) 1.0, Advanced Audio Distribution Profile (A2DP) 1.2 Audio / Video Remote Control Profile (AVRCP) 1.4
- Wi-Fi: WLAN IEEE 802.11 b / g / n
- Wi-Fi hotspot: Up to 8 Wi-Fi-enabled devices
Local sharing
- Peer-to-peer sharing: Lumia Storyteller
Cellular connectivity
- GSM network: 850 MHz, 900 MHz, 1800 MHz, 1900 MHz
- GSM max data speed DL: EGPRS 236.8 kbps
- GSM max data speed UL: EGPRS 236.8 kbps
- WCDMA network: Band 8 (900 MHz), Band 1 (2100 MHz)
- WCDMA max data speed DL: 42.2 Mbps (Cat 24)
- WCDMA max data speed UL: 5.76 Mbps (Cat 6)
GPS and navigation
- Location technologies: A-GPS, A-GLONASS, Cellular and Wi-Fi network positioning
- Maps: Free maps, Offline maps, Online and offline favorites, Real-time traffic information
- Drive: Speed \u200b\u200blimit warnings, Favorite destinations, Live traffic information, Free global voice guided turn-by-turn drive navigation
Main camera
- Main camera: 5.0 MP
- Main camera focus type: Auto focus
- Sensor size: 1/4 inch
- Main camera f-number / aperture: f / 2.4
- Camera focal length: 28 mm
- Flash type: LED flash
- Camera features: Auto and manual white balance, Automatic photo upload to OneDrive
- Camera minimum focus range: 10 cm
Front facing camera
- Front camera: 5 MP wide angle
- Front camera f-number / aperture : f / 2.4
- Front camera features: Video call, Video recording, Focal length 24 mm, Still image capture
- Front camera video resolution: FWVGA (848 x 480)
Video recording
- Main camera video resolution: FWVGA (848 x 480)
- Camera video frame rate: 30 fps
- Video recording formats: MP4 / H.264
Audio
- Audio recording codecs: AAC LC, AMR-NB, GSM FR
- Audio recording features: Mono
- Audio playback features: Podcasts, Media Player, Music Player, Audio Streaming, Cloud music playback, Cloud music offline playback
- Radio features: FM Radio, Internet Radio
Video playback
- Video playback frame rate: 30 fps
- Video playback codecs: VC-1, H.263, MPEG-4, H.264 / AVC, Windows video
- Video streaming: Progressive video download, YouTube browsing and video streaming, Streaming from video services and internet
Tools and productivity
- Personal information management features : Clock, Wallet, OneNote, Calendar, Phonebook, Reminders, Calculator, To-do list, Alarm clock, Family Room, Kid's Corner, Notifications, Social networks in Phonebook
- Business apps: Office apps, Microsoft Outlook, Adobe Reader free download, Lync (Corporate IM) free download, Company Hub for enterprise applications, OneDrive storage for documents and notes
- Back-up and restore your data: Yes
- Sync type: Exchange ActiveSync, Photo Transfer for Mac, Via Windows Phone apps
- Device management: AirWatch, Symantec, MobileIron, Windows Intune, Microsoft System Center, OMA Device Management v1.2, OMA Client Provisioning v1.1, OMA Device Management v1.1.2
Call management
- Call types: Audio call, Conference call, Skype video call
- Call management features: Call logs, Speed \u200b\u200bdial, Voice mail, Call history, Call waiting, Call forwarding, Integrated hands-free speakers
- Noise reduction: yes
- Supported amount of phonebooks : One integrated phonebook
Other applications
- Game features: Xbox, Touch UI, DirectX 11
- Email features: HTML emails, Linked inboxes, Inbox filtering, Multiple email accounts, Conversational view on email, Text-to-speech message reader, Viewing and editing of email attachments
Messaging features
- Messaging features: Text messaging, Multimedia messaging, Conversational chat style SMS, Text-to-speech message reader, Unified inbox for SMS and MMS, Number screening for messaging, Distribution lists for messaging, Concatenated SMS for long messages, Integrated text messaging and chat, Automatic resizing of images for MMS
Browser
- Internet browsers: Internet Explorer 11
Device security
- General security features: PIN code, Signed OS, Device lock, Secure boot, Consumer VPN, Device lock passcode, Application sandboxing, Application certification, Track and Protect via internet, Backup and restore via Internet, Regular signed firmware updates, Remote device lock via Internet, Remote device wipe via internet, browser integrated anti-phishing
- Enterprise security features: Mobile VPN, Remote lock and wipe, Mobile device management, Remote security policy enforcement, Hardware accelerated device encryption
- Supported security standards: SSL v3.0, TLS v1.0, TLS v1.1, TLS v1.2, Suite B ciphers
- Wi-Fi security modes: WEP, WPA, EAP-AKA, EAP-SIM, EAP-TLS, WPA-Personal, PEAP-MSCHAPv2, WPA2-Personal, WPA-Enterprise, WPA2 (AES / TKIP), WPA2-Enterprise, EAP-TTLS / MSCHAPv2
Environment
- Materials: Free of BFR, Free of PVC, Free of nickel on the product surface
- Packaging: Minimized package, Made of renewable materials, Packaging is 100% recyclable, Virgin wood fibers up to 85% certified, Containing up to 50% recycled materials
- Energy efficiency: Battery saver feature, Automatic screen brightness adjustment
- Product recycling: 100% recoverable as materials and energy
- User guide: Small printed guide, In-device user guide
Accessibility features
- Heearing: Video call, TTY support, Vibrating alerts, BT neckloop compatible
- Vision: Voice commands, Vibrating alerts, Voice recognition, Font magnification, High contrast mode, Screen magnification, Customizable home screen
- Physical skills: Speed \u200b\u200bdial, Speakerphone, Voice commands, Voice recognition, Customizable home screen
