Here you can compare iAir D4 and Xiaomi Redmi Note 9 Pro Max. Comparing iAir D4 vs Xiaomi Redmi Note 9 Pro Max on Smartprix, enables you to check their respective specs scores and unique features. It would potentially help you understand how iAir D4 stands against Xiaomi Redmi Note 9 Pro Max and which one should you buy. The current lowest price found for iAir D4 is ₹799 and for Xiaomi Redmi Note 9 Pro Max is ₹14,999. The details of both of these products were last updated on Jan 26, 2021.
|Specification||iAir D4||Xiaomi Redmi Note 9 Pro Max|
|Display||1.8 inches, 128 x 160 pixels||6.67 inches, 1080 x 2400 pixels|
|Battery||1000 mAh, Li-ion Battery||5020 mAh, Li-Po Battery|
|CPU||-||2.3 GHz, Octa Core Processor|
|Rear Camera||0.3 MP Primary Camera||64 MP f/1.79 (Main)<br>8 MP f/2.2 (Ultra Wide)<br>5 MP f/2.4 (Macro )<br>2 MP f/2.4 (Depth Sensor) with autofocus|
Samsung Galaxy M21
Show:All Features Differences
|Overview||Advantages (Factors To Decide Which Device You Should Buy) Remove All Devices|
|Rankings||# 2||# 1|
|Specs Score||12 / 100||80 / 100|
|Operating System||Android v10.0|
|Features Present In Only One Device|
Has a Removable Battery
Remove the battery to switch off your device (Hard Reset) when it freezes. Also replace the battery or use a spare battery when device's battery performance is degraded.
Has a Touch Screen
Touch Displays offer a more interactive experience.
More Responsive Touch Screen
Xiaomi Redmi Note 9 Pro Max has a capacitive touch screen which is more responsive than a resistive (not so sensitive) touchscreen.
Around 270% bigger screen than iAir D4. Reading, browsing internet and watching movies is more pleasing experience on a bigger screen.
Better Screen Resolution
Around 12556% more pixels than iAir D4. More resolution means sharper and crisper screen.
Xiaomi Redmi Note 9 Pro Max is 3G Enabled. 3G Enabled Handsets give you more download speed and a faster internet experience.
Xiaomi Redmi Note 9 Pro Max is 4G Enabled. 4G Enabled Handsets give you more download speed and a faster internet experience than 3g.
Xiaomi Redmi Note 9 Pro Max is VoLTE Enabled. You can use this to make calls over 4G network. It is compatible with Reliance Jio.
Xiaomi Redmi Note 9 Pro Max is Wifi Enabled. You can connect to wifi hotspots in your area to experience a superior internet experience.
Better Camera Resolution
Around 21233% more mega pixels (MP) than iAir D4. More resolution generally means better picture quality, though it's not always necessary.
Has Quad Camera
Multiple cameras is useful for enhancing certain effects like blur, zoom and wide angle photos.
Has Flash For Camera
Having a camera flash allows you to take photos in low light.
Has Front Camera
Front Camera enables you to take your own photos and do videocalling (on supported devices).
Around 401% more Battery Capacity than iAir D4. With more battery size, device's battery can generally last more time, though it depends on various other factors too.
Has Fingerprint Sensor
Fingerprint sensor support allows you to quickly unlock your device using your fingerprint.
GPS is used for determining your location. You can get directions to a place with the help of GPS.
|Sim Type||Dual Sim, GSM+GSM||Dual Sim, GSM+GSM|
|Sim Size||Nano+Nano SIM|
|Device Type||Feature Phone||Smartphone|
|Release Date||October 27, 2020||March 12, 2020|
|Dimensions||165.5 x 76.68 x 8.8 mm|
|Type||Color TFT screen||Color IPS LCD screen (16M)|
|Touch||Yes, with Multitouch|
|Size||1.8 inches, 128 x 160 pixels||6.67 inches, 1080 x 2400 pixels|
|PPI||~114 PPI||~395 PPI|
|Screen to Body Ratio||~ 84.6%|
|Features||ches||Triple Corning Gorilla Glass 5, Standard Mode, Sunshine Mode, Night mode, Color Temperature Adjustment|
|Notch||Yes, Punch Hole|
|Card Slot||Yes, upto 32 GB||Yes, upto 512 GB|
|VoLTE||Yes, Dual Stand-By|
|Wifi||No||Yes, with wifi-hotspot|
|Bluetooth||Yes||Yes, v5.0, A2DP, LE|
|USB||Yes, microUSB v2.0||Yes, USB-C v2.0|
|USB Features||USB on-the-go, USB Charging|
|GPS||No||Yes, with A-GPS, Galileo, GLONASS, Beidou, NavIC Support|
|Fingerprint Sensor||Yes, Side|
|Sensors||Ambient Light Sensor, Proximity Sensor, E Compass, Accelerometer, Gyroscope|
|3.5mm Headphone Jack||Yes||Yes|
|Rear Camera||0.3 MP Primary Camera||64 MP f/1.79 (Main)|
8 MP f/2.2 (Ultra Wide)
5 MP f/2.4 (Macro )
2 MP f/2.4 (Depth Sensor) with autofocus
|Features||Digital Zoom||Night mode, AI Scene detection, Smart ultra-wide angle mode | AI Beautify | Burst mode | Tilt-shift | Level display | Custom watermark | Pro mode | AI Portrait mode, 3D Lighting, Panorama mode|
|Video Recording||No||4K @ 30fps UHD, 1080p @ 30/60fps FHD, 720p @ 30fps HD|
|Front Camera||No||32 MP f/2 (Main)|
|Front Video Recording||1080p @ 30fps FHD, 720p @ 30fps HD|
|Chipset||Qualcomm Snapdragon 720G|
|CPU||2.3 GHz, Octa Core Processor|
|Core Details||2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver|
|Browser||Yes, supports HTML5|
|Music||MP3||MP3, AMR, FLAC, APE|
|Video||3GP, MP4||MP4, M4V, MKV, XVID|
|Type||Removable Battery||Non-Removable Battery|
|Size||1000 mAh, Li-ion Battery||5020 mAh, Li-Po Battery|
|Fast Charging||33W Fast Charging|
|StandBy Time||20 days|
|Music Playback Time||210 hours|
|Differences||Add Another Product||Add Another Product|