Both Samsung Galaxy S21 Ultra and OPPO Reno 15 Pro Max comes with same RAM. In terms of display resolution, Samsung Galaxy S21 Ultra has better resolution of 3200 x 1440 than OPPO Reno 15 Pro Max which has resolution of 2772 x 1272. Both have the same amount of internal memory.
| Name | Samsung Galaxy S21 Ultra | OPPO Reno 15 Pro Max |
| RAM | 12 GB | 12 GB |
|---|---|---|
| Display | 6.8 in | 6.78 in |
| Internal Memory | 256 GB | 256 GB |
| Battery | 5000 mAh | 6500 mAh |
| Camera | 108 MP Quad | 200 MP + 50 MP + 50 MP Triple |
| Price | Rs. 47990 | Rs. 59990 |
The launch Date of the first phone is January 14, 2021. The cost of Samsung Galaxy S21 Ultra is Rs. 47990. The launch Date of the second phone is January 02, 2026. The Expected cost of OPPO Reno 15 Pro Max is Rs. 59990.
OPPO Reno 15 Pro Max has screen size of 6.78 inches which falls short to Samsung Galaxy S21 Ultra's 6.8 inch screen. Samsung Galaxy S21 Ultra has Screen type where as OPPO Reno 15 Pro Max has LTPO AMOLED Screen type. Samsung's phone has display density of 515 PPI & OPPO's phone has only 450 PPI display density. In terms of screen to body ratio, OPPO's phone has better screen to body ratio of ~ 91.1% than Samsung's phone ~ 89.8%.
Both mobiles come with 12 GB RAM and both have same Internal Memory of 256 GB.
OPPO Reno 15 Pro Max's 200 MP + 50 MP + 50 MP Triple Rear Camera outclasses Samsung Galaxy S21 Ultra's 108 MP Quad Rear Camera in terms of resolution. OPPO Reno 15 Pro Max will be better choice if you're looking to click lot of selfies as it has better 50 MP Front Camera in comparison to Samsung Galaxy S21 Ultra's 40 MP Front Camera.
Both the phones has Android Operating System but the first one runs on version 10 and the second one on 16 version.
| Name | Samsung Galaxy S21 Ultra | OPPO Reno 15 Pro Max |
| General | ||
| Model | Galaxy S21 Ultra 5G | CPH2811 |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | eSIM+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | January 14, 2021 | January 02, 2026 |
| Design | ||
| Dimensions | 75.6 x 165.1 x 8.9 mm | 76.5 x 161.3 x 7.7 mm |
| Weight | 227 g | 205 g |
| Bezel less | No | |
| Colors | Dusk Brown, Aura Gold | |
| Display | ||
| Type | Color Dynamic AMOLED 2X (16M Colors) | Color LTPO AMOLED Screen (1B Colors) |
| Touch | Yes | Yes |
| Size | 6.8 inches, 1440 x 3200 pixels, 120 Hz | 6.78 inches, 1272 x 2772 pixels, 120 Hz |
| Aspect Ratio | 20:9 | |
| PPI | ~ 515 PPI | ~ 450 PPI |
| Screen to Body Ratio | ~ 89.8% | ~ 91.1% |
| Glass Type | Corning Gorilla Glass Victus | Corning Gorilla Glass Victus 2 |
| Brightness | 600 nits (typ), 1800 nits (HBM) | |
| Features | Always-on Display, HDR10+, Curved Display | HDR10+ |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
| Curved Display | Yes | |
| Memory | ||
| RAM | 12 GB | 12 GB |
| Storage | 256 GB | 256 GB |
| Storage Type | UFS 3.1 | UFS 3.1 |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | Yes |
| 5G Bands | NR: n1//n5/n8/n28A/n41/n77/n78 | |
| VoLTE | Yes, Dual Stand-By | Yes, Dual Stand-By |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | Wi-Fi 6 | |
| Bluetooth | Yes, v5.2, A2DP, LE | Yes, v5.4, A2DP, LE, aptX HD |
| USB | Yes, USB-C v3.2 | Yes, USB-C v2.0 |
| USB Features | USB on-the-go, USB Charging | USB on-the-go, USB Charging |
| IR Blaster | Yes | |
| Extra | ||
| GPS | Yes, with A-GPS, GLONASS, BDS, GALILEO | Yes, with A-GPS, GLONASS, BDS, GALILEO, QZSS |
| Fingerprint Sensor | Yes, In Display | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Accelerometer, Gyro, Proximity, Compass, Barometer | Accelerometer, Gyro, Proximity, Compass |
| 3.5mm Headphone Jack | No | No |
| NFC | Yes | Yes |
| Water Resistance | Yes, 1.5 m upto 30 min | Yes, 1.5 m upto 30 min |
| IP Rating | IP68 | IP68 |
| Dust Resistant | Yes | Yes |
| Camera | ||
| Rear Camera | 108 MP ƒ/1.8 10 MP ƒ/4.9 (Telephoto) 10 MP ƒ/2.4 (Telephoto) 12 MP ƒ/2.2 (Ultra Wide) | 200 MP ƒ/1.8 (Wide Angle) 24mm (wide), 1/1.56", 0.5µm, PDAF, OIS 50 MP ƒ/2.8 (Telephoto) 85mm (telephoto), PDAF, OIS, 3.5x optical zoom 50 MP ƒ/2 (Ultra Wide) 16mm, 116˚ (ultrawide), AF |
| OIS | Yes | Yes |
| Auto Focus | Yes | Yes |
| Features | Auto-HDR, Panorama | Color Spectrum Sensor, HDR, Panorama |
| Video Recording | 8K @ 24 fps UHD, 4K @ 30/60 fps UHD, 1080p @ 240/30/60 fps FHD, 720p @ 960 fps HD | 4K @ 30 fps UHD, 1080p @ 30 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 40 MP ƒ/2.2 (Wide Angle) Punch Hole, Autofocus | 50 MP ƒ/2 (Ultra Wide) Punch Hole |
| Front Video Recording | 4K @ 30/60 fps UHD, 1080p @ 30 fps FHD | 4K @ 30 fps UHD, 1080p @ 30 fps FHD |
| Technical | ||
| OS | Android v10 | Android v16 |
| Custom UI | ColorOS 16 | |
| Chipset | Samsung Exynos 2100 | Mediatek Dimensity 8450 |
| CPU | 2.9 GHz, Octa Core Processor | 3.25 GHz, Octa Core Processor |
| Core Details | 1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55 | 1x3.25 GHz Cortex-A725 & 3x3.0 GHz Cortex-A725 & 4x2.1 GHz Cortex-A725 |
| GPU | Mali-G78 MP14 | Mali-G720 MC7 |
| Java | No | No |
| Browser | Yes | Yes |
| Multimedia | ||
| Yes | Yes | |
| Music | Yes | Yes |
| Video | Yes | Yes |
| FM Radio | No | No |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 5000 mAh, Li-Po Battery | 6500 mAh |
| Fast Charging | Yes, 25W Fast Charging | Yes, 80W Fast Charging |
| Wireless Charging | Yes, 15W | Yes, 50W |
| Reverse Charging | Yes, 4.5W | Yes |