iQOO Z9x (8GB RAM + 128GB) vs Vivo Y31 (6GB RAM + 128GB)
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Overview
| Specs Score | 80 / 100 Better Specs | 76 / 100 |
| RAM | 8 GB More RAM | 6 GB |
| CPU Clock Speed | 2.2 GHz Faster Clock Speed | 2 GHz |
| Front Camera | 8 MP | 16 MP Better Front Camera Resolution |
| Weight | 199 g | 188 g Lighter |
| Thickness | 7.99 mm Slimmer | 8.4 mm |
| Battery | 6000 mAh Bigger Battery | 5000 mAh |
| Unique Features | 5G No Water Resistant Reverse Charging | No FM Radio No No |
General
| Country of Origin | India | |
| Model | Z9x | Y31 2021 |
| Sim Type | Dual Sim, GSM+GSM (Hybrid Slot) | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | April 24, 2024 | January 20, 2021 |
Design
| Dimensions | 76 x 165.7 x 7.99 mm | 75 x 163 x 8.4 mm |
| Weight | 199 g | 188 g |
| Bezel less | No | |
| Colors | Tornado Green, Storm Grey |
Display
| Type | Color IPS Screen (1B Colors) | Color IPS LCD Screen (16M Colors) |
| Touch | Yes | Yes |
| Size | 6.72 inches, 1080 x 2408 pixels, 120 Hz | 6.58 inches, 1080 x 2408 pixels |
| Aspect Ratio | 20:9 | 20:9 |
| PPI | ~ 393 PPI | ~ 401 PPI |
| Screen to Body Ratio | ~ 86.4% | ~ 84.5% |
| Features | 1000 nits Local Peak Brightness, Low Blue Light Certification | |
| Notch | Yes, Punch Hole | Yes, Water Drop Notch |
Memory
| RAM | 8 GB | 6 GB |
| Expandable RAM | Upto 8 GB Extra Virtual RAM | |
| Storage | 128 GB | 128 GB |
| Storage Type | UFS 2.2 | |
| Card Slot | Yes, (Hybrid Slot), upto 1 TB | Yes, upto 1 TB |
Connectivity
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | |
| 5G Bands | n1/n3/n5/n8/n28B/n40/n77(3300-3800MHz)/n78 | |
| VoLTE | Yes, Dual Stand-By | Yes, Dual Stand-By |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | Wi-Fi 5 (802.11 a/b/g/n/ac), Dual Band | |
| Bluetooth | Yes, v5.1, A2DP, LE, aptX HD | Yes, v5.0, A2DP, LE |
| USB | Yes, USB-C v2.0 | Yes, USB-C v2.0 |
| USB Features | USB Tethering, USB on-the-go, USB Charging | USB on-the-go, USB Charging |
Extra
| GPS | Yes, with A-GPS, GLONASS, GALILEO, BeiDou, GNSS, QZSS | Yes, with A-GPS, GLONASS, GALILEO, BDS |
| Fingerprint Sensor | Yes, Side | Yes, Side |
| Face Unlock | Yes | Yes |
| Sensors | Accelerometer, Ambient light Sensor, Proximity Sensor, E-compass, Fingerprint, Gyroscope sensor | Accelerometer, Ambient Light Sensor, Proximity Sensor, E-compass, Virtual Gyroscope |
| 3.5mm Headphone Jack | Yes | Yes |
| Water Resistance | Yes | |
| IP Rating | IP64 | |
| Dust Resistant | Yes | |
| Extra Features | Dual Stereo Speakers, Hi-Res Audio |
Camera
| Rear Camera | 50 MP ƒ/1.8 (Wide Angle) 2 MP ƒ/2.4 (Depth Sensor) | 48 MP ƒ/1.8 (Wide Angle) 2 MP ƒ/2.4 (Macro) Macro 2 MP ƒ/2.4 (Depth Sensor) |
| Auto Focus | Yes | Yes |
| Features | Night, Portrait, Photo, Video, 50 MP, Panorama, Slo-mo, Time-lapse, Pro, Live photo, Documents | Front: Portrait, Photo, Video, Live Photo | Portrait, Photo, Video, Pano, Live Photo, Slo-Mo, Time-Lapse, Pro, DOC, Super Night Mode |
| Video Recording | 4K, 1080p | 4K @ 30 fps UHD, 1080p @ 30 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 8 MP ƒ/2.05 (Wide Angle) Punch Hole, Screen Flash | 16 MP ƒ/2 (Wide Angle) |
| Front Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
Technical
| OS | Android v14 | Android v11 |
| Custom UI | Funtouch OS 14 | |
| Chipset | Qualcomm Snapdragon 6 Gen1 | Qualcomm Snapdragon 662 |
| CPU | 2.2 GHz, Octa Core Processor | 2 GHz, Octa Core Processor |
| Core Details | 1x Cortex-A710@2.4GHz & 3x Cortex-A710@2.36GHz& 4x Cortex-A510@1.8 GHz | 4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver |
| GPU | Adreno 710 | Adreno 610 |
| Java | No | No |
| Browser | Yes | Yes, supports HTML5 |
Multimedia
| Yes | Yes | |
| Music | AAC, MIDI, OGG, FLAC, WMA, WAV, APE, MP3 | Yes |
| Video | MP4, 3GP, AVI | Yes |
| FM Radio | No | Yes |
| Document Reader | Yes |
Battery
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 6000 mAh, Li-ion Battery | 5000 mAh, Li-ion Battery |
| Fast Charging | Yes, 44W Flash Charge | Yes, 18W Fast Charging |
| Reverse Charging | Yes | |
| Talk Time | 36 hours | |
| Video Playback Time | 21 hours | |
| Music Playback Time | 71 hours |
Discuss
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