Should I go for a Nexus 5 even though the model is more than a year old?

Instead of buying Nexus 5. I think you should checkout the specs of following smartphones. These phones includes a lot of new features and enhanced performance.......
Moto X (2014)

• OS: Android 5.0
• Body: 140.8 x 72.4 x 10 mm
• Weight: 144g
• Display: 1080 x 1920 pixels, 5.2 inches
• Memory: 16GB expandable, 2GB RAM
• Processor: Qualcomm Snapdragon 801 2.5 GHz Quad Core
• GPU: Adreno 330
• Camera: 13MP, 2MP secondary
• Battery: 2,300mAh

Pros

• Display
• Processor
• Android 5.0

Cons

• Battery

ASUS Zenfone 2 ZE551ML

• OS: Android 5.0
• Body: 152.5 x 77.2 x 10.9 mm
• Weight: 170g
• Display: 1080 x 1920 pixels, 5.5 inch
• Memory: 32GB expandable, 4GB RAM
• Processor: Quad-core 2.3GHz Intel Atom Z3580
• GPU: PowerVR G6430
• Camera: 13MP, 5MP secondary
• Battery: 3,000mAh
• Dual SIM: 4G + 3G

Pros

• Every feature for this price, especially the RAM

Cons


ASUS Zenfone 2 ZE551ML (different processor)

• OS: Android 5.0
• Body: 152.5 x 77.2 x 10.9 mm
• Weight: 170g
• Display: 1080 x 1920 pixels, 5.5 inch
• Memory: 32GB expandable, 4GB RAM
• Processor: Quad-core 1.8GHz Intel Atom Z3560
• GPU: PowerVR G6430
• Camera: 13MP, 5MP secondary
• Battery: 3,000mAh
• Dual SIM: 4G + 3G

Pros

• Every feature for this price, especially the RAM

Cons


Xiaomi Mi4

• OS: Android 4.4
• Body: 139.2 x 68.5 x 8.9 mm
• Weight: 149g
• Display: 1080 x 1920 pixels, 5.0 inch
• Memory: 16GB expandable, 3GB RAM
• Processor: Quad-core 2.5 GHz Snapdragon 801
• GPU: Adreno 330
• Camera: 13MP, 8MP secondary
• Battery: 3,080 mAh

Pros

• Every feature for this price

Cons


OnePlus One

• OS: Android 4.4
• Body: 152.9 x 75.9 x 8.9 mm
• Weight: 130g
• Display: 1080 x 1920 pixels, 5.5 inch
• Memory: 64GB non expandable, 3GB RAM
• Processor: Quad-core 2.5 GHz Snapdragon 801
• GPU: Adreno 330
• Camera: 13MP, 5MP secondary
• Battery: 3,100 mAh

Pros

• Every feature for this price

Cons


Huawei Honor 6

• OS: Android 4.4
• Body: 139.6 x 69.7 x 7.5 mm
• Weight: 130g
• Display: 1080 x 1920 pixels, 5.0 inch
• Memory: 16GB expandable, 3GB RAM
• Processor: Quad-core 1.7 GHz Cortex-A15 & quad-core 1.3 GHz Cortex-A7
• GPU: Mali-T628 MP4
• Camera: 13MP, 5MP secondary
• Battery: 3,100 mAh

Pros

• Every feature for this price

Cons


Samsung Galaxy E7

• OS: Android 4.4
• Body: 151.3 x 77.2 x 7.3 mm
• Weight: 141g
• Display: 720 x 1280 pixels, 5.5 inch
• Memory: 16GB non expandable, 2GB RAM
• Processor: Quad-core 1.2 GHz Cortex A-53 Snapdragon 410
• GPU: Adreno 306
• Camera: 13MP, 5MP secondary
• Battery: 2,950 mAh

Pros

• Battery
• Camera

Cons

• Processor

Lenovo Vibe X2

• OS: Android 4.4
• Body: 140.2 x 68.6 x 7.3 mm
• Weight: 120g
• Display: 1080 x 1920 pixels, 5 inches
• Memory: 32GB non expandable, 2GB RAM
• Processor: MediatTek MT6595m True8Core Octa-core 2.0 GHz
• GPU: PowerVR G600
• Camera: 13MP, 5MP secondary
• Battery: 2,390mAh

Pros

• More or less everything for the price tag

Cons


HTC Desire 820s

• OS: Android 4.4
• Body: 157.7 x 78.74 x 7.74 mm
• Weight: 155g
• Display: 1280 x 720 pixels, 5.5 inches
• Memory: 16GB expandable, 2GB RAM
• Processor: 1.7GHz Octa core
• GPU: Mali-T760MP2
• Camera: 13MP, 8MP secondary
• Battery: 2,600 mAh
• Dual SIM 3G + LTE

Pros

• Expandable memory
• Cameras
• Processor

Cons

• Battery

Apple iPhone 5c

• OS: iOS 7.1
• Body: 124.4 x 59.2 x 9 mm
• Weight: 132g
• Display: 640 x 1136 pixels, 4.0 inches
• Memory: 8 GB non expandable, 1GB RAM
• Processor: 1.3GHz Dual core A6
• GPU: PowerVR SGX 543MP3
• Camera: 8MP, 1.2MP secondary
• Battery: 1,510 mAh

Pros

• Rich ecosystem
• Brand value

Cons

• Non expandable memory
• Other phones in this price bracket offering better/more powerful hardware (though iOS runs perfectly well on these specifications)
• No NFC
• 8GB inbuilt memory only
• Screen resolution and size

Samsung Galaxy S4

• OS: Android 4.4
• Body: 136.6 x 69.8 x 7.9 mm
• Weight: 130g
• Display: 1080 x 1920 pixels, 5 inches
• Memory: 16GB expandable, 2GB RAM
• Processor: Exynos 5 Octa 1.6GHz quad core Cortex A15 + 1.2GHz quad core Cortex A7
• GPU: PowerVR SGX 544MP3
• Camera: 13MP, 2MP secondary
• Battery: 2,600 mAh
• AnTuTu score: 26,147

Pros

• Display
• Expandable memory
• Camera
• Android 4.4

Cons


Samsung Galaxy Note 3 Neo

• OS: Android 4.3
• Body: 148.4 x 77.4 x 8.6 mm
• Weight: 163g
• Display: 720 x 1280 pixels, 5.5 inches
• Memory: 16GB expandable, 2GB RAM
• Processor: Exynos 5260 Hexa Core 1.3 GHz Cortex A7 & dual-core 1.7 GHz Cortex A15
• GPU: Mali-T624
• Camera: 8MP, 2MP secondary
• Battery: 3,100 mAh

Pros

• Expandable memory
• Battery
• Stylus
• Battery

Cons


Sony Xperia Z Ultra

• OS: Android 5.0
• Body: 179.4 x 92.2 x 6.5 mm
• Weight: 212g
• Display: 1080 x 1920 pixels, 6.4 inches
• Memory: 16GB expandable, 2GB RAM
• Processor: Qualcomm Snapdragon 800 2.2GHz Quad Core
• GPU: Adreno 330
• Camera: 8MP, 2MP secondary
• Battery: 3,050mAh
• AnTuTu score: 32,983

Pros

• Expandable memory
• Pencil as a stylus support
• Battery
• Display
• Processor
• Android 5.0 incoming

Cons


Samsung Galaxy E5

• OS: Android 4.4
• Body: 141.6 x 70.2 x 7.3 mm
• Weight: 140g
• Display: 720 x 1280 pixels, 5.0 inch
• Memory: 16GB non expandable, 1.5GB RAM
• Processor: Quad-core 1.2 GHz
• GPU: ??
• Camera: 8MP, 5MP secondary
• Battery: 2,400 mAh

Pros

• Front Camera

Cons



Lenovo Vibe Z K910

• OS: Android 4.4.2
• Body: 149.1 x 77 x 7.9 mm
• Weight: 145g
• Display: 1080 x 1920 pixels, 5.5 inches
• Memory: 16GB expandable, 2GB RAM
• Processor: Qualcomm Snapdragon 800 2.2GHz Quad Core
• GPU: Adreno 330
• Camera: 13MP, 5MP secondary
• Battery: 3,000mAh

Pros

• Processor
• Battery
• Camera