Both Xiaomi Redmi 12 5G (8GB RAM + 256GB) and iQOO Z3 5G (8GB RAM + 128GB) comes with same RAM. In terms of display resolution, Xiaomi Redmi 12 5G (8GB RAM + 256GB) has better resolution of 2460 x 1080 than iQOO Z3 5G (8GB RAM + 128GB) which has resolution of 2408 x 1080. Xiaomi Redmi 12 5G (8GB RAM + 256GB) has more internal memory than iQOO Z3 5G (8GB RAM + 128GB)
| Name | Xiaomi Redmi 12 5G (8GB RAM + 256GB) | iQOO Z3 5G (8GB RAM + 128GB) | 
| RAM | 8 GB | 8 GB | 
|---|---|---|
| Display | 6.79 in | 6.58 in | 
| Internal Memory | 256 GB | 128 GB | 
| Battery | 5000 mAh | 4400 mAh | 
| Camera | 50 MP + 2 MP Dual | 64 MP + 8 MP + 2 MP Triple | 
| Price | Rs. 14499 | Rs. 20999 | 
The launch Date of the first phone is August 01, 2023. The cost of Xiaomi Redmi 12 5G (8GB RAM + 256GB) is Rs. 14499. The launch Date of the second phone is June 8, 2021. The cost of iQOO Z3 5G (8GB RAM + 128GB) is Rs. 20999.
Xiaomi Redmi 12 5G (8GB RAM + 256GB) has larger screen size of 6.79 inches in comparison to iQOO Z3 5G (8GB RAM + 128GB)'s 6.58 inch screen. Xiaomi Redmi 12 5G (8GB RAM + 256GB) has IPS Screen type where as iQOO Z3 5G (8GB RAM + 128GB) has IPS LCD Screen type. iQOO's phone has display density of 401 PPI & Xiaomi's phone has only 396 PPI display density. In terms of screen to body ratio, Xiaomi's phone has better screen to body ratio of ~ 91% than iQOO's phone ~ 90.61%. Xiaomi Redmi 12 5G (8GB RAM + 256GB) has 20.5:9 aspect ratio where as iQOO Z3 5G (8GB RAM + 128GB) has 20:9 aspect ratio.
Both phones come with 8 GB RAM Xiaomi Redmi 12 5G (8GB RAM + 256GB) has more Internal Memory (256 GB) than iQOO Z3 5G (8GB RAM + 128GB) (128 GB).
iQOO Z3 5G (8GB RAM + 128GB)'s 64 MP + 8 MP + 2 MP Triple Rear Camera outshines Xiaomi Redmi 12 5G (8GB RAM + 256GB)'s 50 MP + 2 MP Dual Rear Camera in terms of resolution. iQOO Z3 5G (8GB RAM + 128GB) will be better choice if you're looking to click lot of selfies as it has better 16 MP Front Camera in comparison to Xiaomi Redmi 12 5G (8GB RAM + 256GB)'s 8 MP Front Camera.
Both the phones has Android Operating System but the first one runs on version 13 and the second one on 11 version.
| Name | Xiaomi Redmi 12 5G (8GB RAM + 256GB) | iQOO Z3 5G (8GB RAM + 128GB) | 
| General | ||
| Model | 12 5G | Z3 | 
| Sim Type | Dual Sim, GSM+GSM (Hybrid Slot) | Dual Sim, GSM+GSM (Hybrid Slot) | 
| Dual Sim | Yes | Yes | 
| Sim Size | Nano SIM | Nano SIM | 
| Device Type | Smartphone | Smartphone | 
| Release Date | August 01, 2023 | June 8, 2021 | 
| Design | ||
| Dimensions | 76.28 x 168.6 x 8.17 mm | 75.3 x 164 x 8.5 mm | 
| Weight | 199 g | 185.5 g | 
| Colors | Moonstone Sliver, Pastel Blue, Jade Black | |
| Display | ||
| Type | Color IPS Screen (16M Colors) | Color IPS LCD Screen (16M Colors) | 
| Touch | Yes, 240 Hz Touch Sampling Rate | Yes | 
| Size | 6.79 inches, 1080 x 2460 pixels, 90 Hz | 6.58 inches, 1080 x 2408 pixels, 120 Hz | 
| Aspect Ratio | 20.5:9 | 20:9 | 
| PPI | ~ 396 PPI | ~ 401 PPI | 
| Screen to Body Ratio | ~ 91% | ~ 90.61% | 
| Glass Type | Corning Gorilla Glass 3 | |
| Features | Brightness: 450 nits (typ.) | HDR | 
| Notch | Yes, Punch Hole | Yes, Water Drop Notch | 
| Memory | ||
| RAM | 8 GB | 8 GB | 
| Expandable RAM | Upto 8 GB Extra Virtual RAM | |
| Storage | 256 GB | 128 GB | 
| Storage Type | UFS 2.2 | |
| Card Slot | Yes, (Hybrid Slot), upto 1 TB | Yes, (Hybrid Slot) | 
| Connectivity | ||
| GPRS | Yes | Yes | 
| EDGE | Yes | Yes | 
| 3G | Yes | Yes | 
| 4G | Yes | Yes | 
| 5G | Yes | Yes | 
| 5G Bands | SA: n1/n3/n5/n8/n28/n40/n78, NSA: n1/n3/n8/n40/n78 | |
| VoLTE | Yes, Dual Stand-By | Yes, Dual Stand-By | 
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot | 
| Wifi Version | Wi-Fi: 802.11 a/b/g/n/ac,2.4G/5G | |
| Bluetooth | Yes, v5.3, A2DP, LE | Yes, v5.1, A2DP, LE, aptX HD | 
| USB | Yes, USB-C | Yes, USB-C | 
| USB Features | USB Tethering, USB on-the-go | USB Tethering, USB on-the-go, USB Charging | 
| IR Blaster | Yes | |
| Extra | ||
| GPS | Yes, with AGPS, GLONASS, BeiDou | Yes, with A-GPS, GLONASS, GALILEO, BDS | 
| Fingerprint Sensor | Yes, Side | Yes, Side | 
| Face Unlock | Yes | Yes | 
| Sensors | Ambient Light Sensor, E Compass, Accelerometer, IR Blaster | Accelerometer, Gyro, Proximity, Compass, Ambient Light Sensor | 
| 3.5mm Headphone Jack | Yes | Yes | 
| Splash Resistant | Yes | |
| IP Rating | IP53 | |
| Dust Resistant | Yes | |
| Extra Features | Premium Glass Back, MIUI Dialer, LPDDR4X RAM, Bottom firing loudspeaker | |
| Camera | ||
| Rear Camera | 50 MP ƒ/1.8 (Wide Angle) PDAF 2 MP ƒ/2.4 (Macro) | 64 MP ƒ/1.79 (Wide Angle) 8 MP ƒ/2.2 (Ultra Wide) 2 MP ƒ/2.4 (Macro) Macro | 
| Auto Focus | Yes | Yes | 
| Features | Night, Video, 50MP mode, Google Lens, HDR, Google lens, Voice shutter, Tilt-shift, Timed burst, Time Lapse | Night Mode, Portrait, Pro Mode,Time-Lapse, AR Stickers, | 
| Video Recording | 1080p @ 30 fps FHD, 720p @ 30 fps HD | 4K @ 30 fps UHD, 1080p @ 30 fps FHD | 
| Flash | Yes, LED | Yes, LED | 
| Front Camera | 8 MP ƒ/2 (Wide Angle) Punch Hole | 16 MP ƒ/2 (Wide Angle) Screen Flash | 
| Front Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD | 
| Technical | ||
| OS | Android v13 | Android v11 | 
| Custom UI | MIUI 14 | |
| Chipset | Qualcomm Snapdragon 4 Gen2 | Qualcomm Snapdragon 768G | 
| CPU | 2.2 GHz, Octa Core Processor | 2.8 GHz, Octa Core Processor | 
| Core Details | 2x Performance Cores@2.2GHz & 6x Efficiency Cores@2GHz | 1x2.8 GHz Kryo 475 Prime & 1x2.2 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver | 
| GPU | Adreno GPU | Adreno 620 | 
| Java | No | No | 
| Browser | Yes | Yes | 
| Multimedia | ||
| Yes | Yes | |
| Music | Yes | WAV,AAC,MP3, MP2, MIDI, Vorbis, APE,FLAC | 
| Video | Yes | MP4, 3GP, AVI | 
| FM Radio | No | No | 
| Document Reader | Yes | Yes | 
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery | 
| Size | 5000 mAh, Li-Po Battery | 4400 mAh, Li-Po Battery | 
| Fast Charging | Yes, 18W | Yes, 55W Fast Charging |